Does the Kinetic energy of a car change more when it goes from 10 m/s to 20 m/s or when it goes from 20 m/s to 30 m/s.?

Find the kinetic energy when 2 gm bullet moves with the velocity of 500 m/s .

Which has the greater acceleration, an airplane, that goes from 1000 km/h to 1005 km/h in 10s or a skateboard that goes from zero to 5km/h in 1 second?

Calculate the power of a crane in watts, which lifts a mass of 100 kg to a height of 10 m in 20 s.

A ball is thrown upwards from the top of a tower 40 m high with a velocity of 10 m//s. Find the time when it strikes the ground. Take g=10 m//s^2 .

A constant force acting on a body of mass 3.0 kg changes its speed from 2.0 m s^(-1) to 3.5 m s^(-1) in 25 s. The direction of the motion of the body remains unchanged. What is the magnitude and direction of the force ?

A car moving with a velocity of 10m/s can be stopped by the application of a constant force F In a distance of 20m. If the velocity of the car is 30m/s. It can be stopped by this force in

The velocity of an object of mass 200 kg , performing unifrom acceleration motion , change from 5 m/s to 10 m/s in 6s then calculate the initial and final momentuum of this object.

A person observes a change of 2.5 % in frequency of sound of horn of a car. If the car is approaching forward the person & sound velocity is 320 m/s, then velocity of car in m/s will be approximaterly :-

A car charges its velocity linearly from 10 m//s to 20 m//s in 5 seconds. Plot v-t graph and write velocity as a function of time.

A car is traveling on a straight level track with a uniform speed of 25 m/s. When the car is moving away from a gun at the same level at a distance of 1500 m the gun is fired at an angle of 45^(@) . Find the distance of the car (kilometers) from the gun when it is hit.