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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
First convert tons into kg.
3400 tons = 3.08443 x 106 kg
Second convert km/s to m/s.
120000km/s x 1000m/km = 1.2 x 108 m/s
Calculate kinetic energy.
KE = 1/2mv2, where m is mass in kg, and vis velocity in m/s.
KE = 1/2(3.08443 x 106kg) x (1.2 x 108m/s)2 = 2.2 x 1022 kg m2/s2 = 2.2 x 1022 Joules
What happens to acceleration of pendulum at its lowest point of its swing?
The acceleration of a pendulum is zero at the lowest point of its swing.
What correctly describes the difference in kinetic energy between the two cars?
The kinetic energy of a moving object is determined by its mass and speed. If two cars have different masses but the same speed, the car with the greater mass will have more kinetic energy. If they have the same mass but different speeds, the car moving faster will have more kinetic energy.
The amount of kinetic energy an object has can be determined by finding its and?
Mass and velocity (weight and speed)
What can be measured in kilometers per hour or miles per hour?
They can be used for measuring speed of any object.
Same force, opposite direction (according to Newton's Third Law).
The speed of the jet stream is 110 mph (550 miles / 5 hours). In 5 hours, the plane covers 400 miles (80 mph x 5 hours). In 4 hours, the plane covers 320 miles (80 mph x 4 hours), but it actually covers 550 miles less due to the effect of the jet stream. So, the total distance traveled by the plane in 9 hours would be 720 miles (400 miles + 320 miles).
How is velocity related to the angle of a slope?
Velocity is the slope of the position vs. time curve.
Is the kinematics equation true if acceleration is not constant?
Kinematics does not require constant acceleration. There are different equations for different situations. So some of the equations will be valid even when the acceleration is not constant.
What mph can you go on the highway?
The speed limit varies between countries, between the status of the highways, and also on the weather conditions.
How do you solve a projectile motion problem?
An object projected by force and continuing in motion by its own inertia.An objectile is a a projectile only when it is in a state of motion,usually it covers a parabola shape path.
How do you convert miles per hour to kilometers per hour?
Algebraic Steps / Dimensional Analysis Formula ____ mi/hr*5280 ft/hr
1 mi/hr*1 m/hr
3.2808 ft/hr*1 km/hr
1000 m/hr=? km/hr
Direct Conversion Formula ____ mi/hr*1.609344 km/hr
1 mi/hr=? km/hr
Increasing the temperature of a blackbody by a factor of 3 will increase its energy by a factor of?
81
How does a force change the motion of a carnival swing ride?
Force of tension, exerted from the swing rope, keeps the swing moving in the horizontal back and forth motion. The force of gravity keeps the swing from staying at the far right or far left because it always wants the swing to be pulled to Earth, but the force of tension wants to keep it up. Air resistance, like friction, eventually slows the swing down to a halt.
How can Potential energy and Kinetic energy be observed in your everyday world?
when a car drive up a hill it gains potential energy and when it comes down the hill it gains kinetic energy.
Please use the formula PE = mgh. You can use 9.8 for gravity.
What is the capacity of backhoe per hour?
The largest backhoes in the world commonly scoop up over 4,000 cubic meters per hour.
2 cars traveling at 50 miles per hour hit head on what is the force of the impact?
The force of the impact can be calculated using the formula force = mass * acceleration. Without knowing the mass of the cars or the duration of the impact, it's not possible to provide an exact force value. However, it would likely be a significant force due to the high speed of the cars at impact.
What is the object that is independent of time and position?
The object that is independent of time and position is a mathematical concept or abstraction, such as a number or a geometric shape. These entities exist outside of our physical world and are not defined by their location in space or moment in time.
At 50 mph how many feet per second does a car travel at 50 mph?
At 50 mph, a car travels 73.33 feet every second.
What is the kinetic energy of math pendulum?
The kinetic energy, when the pendulum is at a distance x metres from its central position is
0.5*m*q2*(p2 - x2), Newtons where
m is the mass of the pendulum, assumed to be concentrated at the bottom,
q is given by q = 2pi/period,
p is the amplitude of the pendulum.
What causes an object's velocity to change?
A change in velocity is caused by a change in acceleration. Objects do not speed up, slow down, or change direction unless they are pushed in some way. The acceleration (a) of an object with mass (m) produced by a given force (F) may be calculated using the equation a = F/m.
