Concave up.
"Acceleration is increasing with time" tells us that the derivative of acceleration is positive. Since acceleration is the derivative of velocity, this means that the second derivative of velocity is positive. By definition, having a non-negative second derivative means that velocity is concave up.
What is he difference between speed and velocity?
http://wiki.answers.com/Q/The_difference_of_speed_and_velocity" The difference between speed and velocity is that speed is a scalar quantity(that have only magnitude) and velocity is a vector quantity(that have both magnitude and direction).
What is the difference between an objects gravitational potential energy and its kinetic energy?
POTENTIAL ENERGY is energy when something has energy but is currently stored and not being used.
Example: Batteries have electrical energy stored in them but is not used until put inside of a camera, controller, remote, and etc.
KINETIC ENERGY is energy when something is being moved, thrown, rolled, or spun by force.
Example: When a football is thrown from the Quarterback to the Receiver, the ball is thrown using KINETIC ENERGY.
Why is there no kinetic energy in space?
Yes, if you're moving at the same speed as the object. Relative to you, the object will have zero kinetic energy.
For instance, your computer monitor has zero kinetic energy relative to you. However, relative to the Sun, you're both moving at over 67,000 mph, which equates to a LOT of kinetic energy!
The potential energy he lost on the descent = M g H = (21.2) (9.8) (3.5) = 727.16 joules
The kinetic energy he had at the bottom = 1/2 M V2 = (0.5) (21.2) (2.1)2 = 46.746 joules
The missing energy = (727.16 - 46.746) = 680.414 joules caused heating of the slide and the kid's pants.
A moving object must have potential energy?
An object that has kinetic energy must have momentum, velocity, and speed. Momentum is mass times velocity. Kinetic energy is mass times velocity squared. Speed is distance divided by time. Kinetic energy is the energy of the object's motion. An object that has kinetic energy must have momentum because is the force or speed of movement. For example the ball gained momentum as it rolled down the hill. An object that has kinetic energy must have momentum, velocity, and speed because if an object is in motion (has kinetic energy) it must be either gaining, losing, or at a constant momentum, it must have a velocity (basically speed) and speed because when an object is in motion, it MUST have a certain velocity or speed.
An x-t (position-time) graph shows how an object's position changes over time, while a v-t (velocity-time) graph shows how an object's velocity changes over time. In an x-t graph, the slope represents the object's velocity at that point, while in a v-t graph, the area under the curve represents the object's displacement.
What is an example of gravitational potential energy into kinetic energy?
-- pouring beer out of a bottle into a glass
-- sledding or skiing down a snow-covered hillside
-- plopping effervescent antacid tablets into a glass of water
-- coasting down a hill on your bicycle
-- everything a roller coaster does after it passes the top of the first hill
-- rolling your car down the hill to the filling station after running out of gas
An object in free fall - if it is falling down, its potential energy decreases, its kinetic energy increases.
What type of energy is it when an object is moved against a force?
Mechanical energy is transferred by a force to a moving object.
When a Car travels at 80 miles per hour convert to kilometer per hr?
To convert miles per hour to kilometers per hour, multiply by 1.60934. Therefore, 80 miles per hour is equivalent to approximately 128.75 kilometers per hour.
How fast can a bullet go in mph?
The speed that a bullet travels depends on the weight of the bullet. For example a bullet for a Magnum .357 made by Federal's American Eagle with a 158gr JSP load can travel at a speed of 1351 km/h.
If speed is tripled then its kinetic energy of a mass is?
The formula for Kinetic Energy of an object is mv2/2
where m: mass of object
and v:velocity of object
Therefore when the speed of an object is tripled, then its kinetic energy becomes 9 times
If the speed of a moving object is doubled the kinetic energy of the object is?
The relation between kinetic energy is proportional to the square of velocity. Momentum is directly proportional to velocity. If the momentum of an object is doubled, but its mass does not increase (so velocity remains well below the speed of light), then its velocity is doubled. If the velocity is doubled then the kinetic energy increases by the square of 2, or four time.
The total potential and kinetic energy of all microscopic particles in an object make up its?
The total potential and kinetic energy of all microscopic particles in an object make up its internal energy. This includes the energy associated with the motion and interactions of the particles within the object.
A girl throws a ball 15 m into the air the ball has the maximum potential energy at a height of?
The ball has the highest potential energy at its maximum height (15m in the air). At the beginning, the ball has only kinetic energy and no potential energy. But as the ball travels upward, kinetic energy is converted into potential energy. When the ball changes direction, there is no kinetic energy, as all of it is now potential energy. As the ball returns back down, potential energy is converted back into kinetic energy.
Is it possible to have motion in absence of force?
Not according to Newtons Law:
Forces = Mass X Acceleration
However, in a vacuum, after you used your force on an object and it now has motion, the object will have motion for eternity, even when there is no force. So as a matter of fact, it is possible. Just not on any planet, only in outer space.
The kinetic energy of the bicycle can be calculated using the formula: KE = 0.5 * m * v^2, where m is the mass of the bicycle (15 kg) and v is the velocity (5 m/s). Plugging in the values, KE = 0.5 * 15 kg * (5 m/s)^2 = 187.5 J.
What happens to the kinetic energy when gas is heated?
What does Kinetic energy of carbon dioxide molecules change as the carbon dioxide is heated?
Temperature measures the average Kinetic energy of the molecules of a substance.
Kinetic energy = ½ * mass * velocity^2
As temperature doubles, the kinetic energy doubles, and the velocity of the molecules quadruples. Or course, temperature must be measured in Kelvin or Rankine degrees. These temperature scales have their 0 at absolute 0.
How do you get a strike in bowling?
what you do is run towards the pins with the bowl and toss it at the back of the pins and grab a bowl and throw it at the owner of the place
what you do is make sure you have a bowling ball that is the right size for you, then you throw it straight at the pins and hope for a strike!!!!
How does mass affect the time it takes to reach terminal velocity?
Not the weight explicitly, but the ballistic coefficient, which is m/CdA. Cd is the drag coefficient and A is the area. Which area depends on how you defined Cd. The downward force on an object is mg. The resisting force is CdA (1/2 rho V*V). Rho is the density of the fluid. At the terminal velocity, the two forces are equal, so Vterminal = sqrt(2mg/rho Cd A) or, if you separate the environment from the falling object Vterminal = sqrt (2*g/rho) sqrt(m/CdA) So as long as m/CdA stays the same, the terminal velocity should stay the same. Since mass usually varies with the cube of the linear dimension, while the area varies with the squre, larger things tend to have higher terminal velocities because m/A increases with the size of the object. Mice and elephants have similar densities and drag coefficients, but the m/A of the elephant is much larger just because it's bigger, so an elephant dropped off the Leaning Tower of Pisa will fall faster than a similarly-mistreated mouse. So Galileo was wrong while being right.
As the velocity of an object increases does potential energy decrease?
If I'm not mistaken. The formula for Potential Energy in Physics is
PE = mgy wherein PE = Potential Energy, m = mass, g = acceleration due to gravity, and y = height.
As you will be able to observe potential energy will be produced when the object has a height. Like a person on top of a building, a tennis ball in the air, etc.
What if the object has no height?
- Well, it's simple. When we let y = 0, and multiply it to g and m, PE = 0. Therefore there will be no potential energy produced.
Mass and velocity determine momentum, because mass multiplied by velocity equals momentum.
in which there r few different cases like
i. whether the atom is getting effected by surrondings .
ii. or its not getting effected by its. surrondings (ideal case)
and accordingly momentum values
(momentum in case(i.) will be less comparitive case(ii.) :)
What is your speed in feet per second if you travel at 90 kilometers per hour?
If you travel at 90 kilometers per hour, your speed would be approximately 82.6 feet per second. This conversion is based on the fact that 1 kilometer is equal to 3280.84 feet and 1 hour is equal to 3600 seconds.