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Kinematics
Kinematics is the study of how a body moves. This includes linear motion, angular motion, and rotational motion.
3,459 Questions
FALSE (APEX)
How do you go from a position graph to a velocity graph?
you can't....it's merely impossible!
Assuming it is a graph of velocity vs time, it's not impossible, it's simple. Average velocity is total distance divided by total time. The total time is the difference between finish and start times, and the distance is the area under the graph between the graph and the time axis.
What is an apparatus that converts electric energy into kinetic energy?
An electric motor is an apparatus that converts electric energy into kinetic energy by using magnetic fields induced by electric current to generate rotational motion.
What is the formula for elastic collisions?
if we assume m1 (mass) and v1 (velocity) for first mass , m2 and v2 for second mass ,we have : m1 v1i + m2 v2i = m1 v1f + m2 v2f and 1/2 m1 v1i2 + 1/2 m2 v2i2 = 1/2 m1 v1f2 +1/2 m2 v2f2 i : initial f : final
This is a simplified version: vf1= ((m1-m2)/(m1+m2))(v1i)+ (2m2/(mi+m2)vi2
Why is kinetic energy denoted T?
'T' usually denotes temperature. In thermal physics, temperature is a measure of the kinetic energy of particles as they move around inside the substance.
I can't think of any other explanation, as the letter 'T' is not really linked with kinetic energy in any other situation.
The runner ran 1500 meters in 5 minutes and 22 seconds what was his speed in minutes and seconds?
First lets know the formula of average speed:
average speed= distance/time taken
here the distance: 1500 m and
time taken: 4 minutes
(the metre unit always should be with second unit)
So lets convert 4 mins into sec: 4*60= 240sec
average speed: 1500/240 = 25/4 = 6.25m/s
How do you calculate the force exerted on an object in a well flowing at a given rate?
To calculate the force exerted on an object in a well flowing at a given rate, you can use the formula: Force = Pressure x Area. First, calculate the pressure at the depth of the object in the well using the fluid's density, gravity, and depth. Then, determine the cross-sectional area of the object to which the pressure is being applied. Multiply these values to find the force exerted on the object.
The particles move faster, bumping into each other more, causing the average distance between particles to increase.
the movement in dance is kinetic energy. Kinetic energy is =1/2(mass)(velocity)^2.
if this is a homework question,
it might also relate to impulses (see link).
http://en.wikipedia.org/wiki/Impulse
Means of transport which changes chemical energy into kinetic energy?
Many engines do this conversion. For example, the engines commonly found in cars convert the chemical energy first to heat (by burning it), then convert part of this heat into movement (kinetic energy).
If a slugs speed is 6.5 inchesin 120 minutes what is it in miles per hour?
To convert 6.5 inches per 120 minutes to miles per hour, we need to convert both the distance and time units. There are 63,360 inches in a mile, so 6.5 inches is 0.000102 miles. And there are 60 minutes in an hour, so 120 minutes is 2 hours. Finally, divide the distance by the time to get the speed: 0.000102 miles / 2 hours = 0.000051 miles per hour.
How does the weight of a bowling ball effect how many pins it knocks down?
Because a heavier ball has both more mass (weight) and inertia (resistance to being deflected), it's more likely to drive through the pins and cause them all to fall.
As strange as it sounds, on a textbook strike, the bowling ball itself only touches four of the ten pins. But it imparts energy to those pins, causing them to ricochet in a predictable pattern that causes them to take out the other six pins.
The heavier the ball is, the more energy it transfers to those four pins, and the more likely they are to carry out their job. Of course, this assumes the ball isn't too heavy for the bowler to throw; since Force = mass x acceleration, a lighter ball thrown harder can hit the pins with as much (if not more) power than a heavy ball thrown slowly.
What is the acceleration of an object thrown 3.5 meters at 44 meters per second?
The acceleration of an object thrown vertically upwards can be calculated using the kinematic equation (v_f^2 = v_i^2 + 2a \cdot d), where (v_f) is the final velocity, (v_i) is the initial velocity, (a) is the acceleration, and (d) is the distance. Given that the object is thrown vertically upwards, the equation becomes (0 = (44 , \text{m/s})^2 + 2 \cdot a \cdot (-3.5 , \text{m})). Solving for (a), we find that the acceleration is approximately -104 m/s², which indicates that the object is accelerating downwards.
What happens to velocity if you double kinetic energy?
The square of 2 is 4. So, if the velocity doubles, the energy increases by a factor of 4.
The square of 2 is 4. So, if the velocity doubles, the energy increases by a factor of 4.
The square of 2 is 4. So, if the velocity doubles, the energy increases by a factor of 4.
The square of 2 is 4. So, if the velocity doubles, the energy increases by a factor of 4.
If a conveyor is moving at 3 miles per hour how many feet per minute is it moving?
3 miles per hour is equivalent to 264 feet per minute. This conversion can be done using the fact that 1 mile is equal to 5280 feet and there are 60 minutes in an hour.
Nominal speed refers to the maximum speed at which a device or system is designed to operate under ideal conditions. It serves as a reference point for performance expectations but may not always be achievable in real-world scenarios due to various factors such as environmental conditions or operational constraints.
Two things moving at 10 km Which one has more kinetic energy?
The object with more mass will have more kinetic energy, assuming they are both moving at the same speed. Kinetic energy is directly proportional to an object's mass and velocity, so the object with greater mass will have a greater kinetic energy.
An object with zero momentum must have zero potential energy?
No. If the momentum of a pair of objects is zero sitll they can have kinetic energy.For example, in the case of bullet and gun, before firing the bullet the total momentum is zero and according to the law of conservation of momentum, the total momentum after firing the bullet will also be zero. But still they both will have kinetic energy.
How many miles per hour can you mow a law of 100 feet in 30 seconds?
To determine how many miles per hour you can mow a lawn of 100 feet in 30 seconds, first convert feet to miles (1 mile = 5280 feet), then convert seconds to hours (1 hour = 3600 seconds). After these conversions, you can calculate the speed in miles per hour.
At 45 mph will at take to travel 500 meters?
At 45 miles per hour, a distance of 500 meters requires about 24.8 seconds.
