When the speed of a moving body is doubled

Asked by admin @ 11/08/2021 in Math viewed by 432 People

When the speed of a moving body is doubled what will be the effect on its kinetic energy?

Answered by admin @ 11/08/2021

Step-by-step explanation:

The kinetic energy is proportional to the square of the speed, so doubling the speed increases the kinetic energy by a factor of 4.

Body a of mass 4m moving with speed u

Asked by admin @ 17/08/2021 in Physics viewed by 306 persons

Body A of mass 4m moving with speed u collides with another body B of mass 2m,at rest.the collision is head on and elastic in nature.after the collision the fraction …

An automobile moving at a speed of 72km h

Asked by admin @ 23/08/2021 in Physics viewed by 311 persons

an automobile moving at a speed of 72km h reaches the foot of a smooth incline when the engine is switched off. how much distance does the automobile go up …

A body is moving with velocity 30m s towards

Asked by admin @ 23/08/2021 in Physics viewed by 365 persons

A body is moving with velocity 30m/s towards east. after 10 seconds its velocity becomes 40m/s towards north. the average acceleration of the body is

When the velocity of a body is doubled its

Asked by admin @ 23/08/2021 in Physics viewed by 258 persons

If the velocity of a body is doubled its kinetic energy

When an automobile moving with a speed of 36

Asked by admin @ 20/08/2021 in Physics viewed by 335 persons

When an automobile moving with a speed of 36 km/hr reaches an upward inclined road of angle 30 degree, its engine is switched off. If the coefficient of friction is …

A conveyor belt is moving at a constant speed

Asked by admin @ 17/08/2021 in Physics viewed by 292 persons

A conveyor belt is moving at a constant speed of 2m/s.A box is gently dropped on it.The coefficient of fric9between

If a cyclist moving with a speed of 4.9

Asked by admin @ 17/08/2021 in Physics viewed by 274 persons

If a cyclist moving with a speed of 4.9 m/s on a level road can take a sharp circular turn of radius4 m, then the coefficient of friction between …

A ball is moving with speed 20m s collides

Asked by admin @ 16/08/2021 in Physics viewed by 294 persons

a ball is moving with speed 20m/s collides with a smooth surface as shown in fif. the magnitude of change in velocity of the ball will be

A bullet moving with a speed of 100m s

Asked by admin @ 16/08/2021 in Physics viewed by 321 persons

a bullet moving with a velocityof 100m/s can just penetrate two planks of equal thickness. thenumber of such planks penetrated by the same bullet when the velocity is doubled will …

The position of a body moving along x axis

Asked by admin @ 13/08/2021 in Physics viewed by 321 persons

The position of a body moving along x-axis at time to is given by x = (t^2 - 4t +6)m. The distance travelled by body in time interval t = …

A motorcycle moving with a speed of 5m s

Asked by admin @ 12/08/2021 in Physics viewed by 388 persons

a motorcycle moving with a speed of 5m/s obtains to an acceleration of 0.2m/s .calculate the speed of the motorcycle after 10sec and the distance travelled by it in this …

A car moving with a speed of 50km hr

Asked by admin @ 11/08/2021 in Physics viewed by 322 persons

a car moving with speed of 50 km/hr,can be stopped by brakes after at least 6m. if the same car is moving at a speed of 100km/hr,the minimum stopping distance …