Question

body of mass 2kg is moving with a speed of 20m/s Find the kinetic energy​

Answer 1

Explanation:

The Kinetic Energy is 400 J.......

Answer 2

•Given:-

•Mass of the body ,m=2 kg

•Velocity ,v=20m/s

•To find out:-

•Kinetic energy possessed by the body(K.E)=?

•Formula used:-

•K.E=½ mv²

•Calculation:-

We have the given formula

K.E=½mv²

=½×2×20×20

=400 J ★

Therefore, The kinetic energy possessed by the body is 400 J ★⠀

More Information

•Kinetic energy- The kinetic energy (KE) of an object is the energy that it possesses due to its motion.[1] It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes. The same amount of work is done by the body when decelerating from its current speed to a state of rest.

•SI unit= kg ms-¹ or Joule(J)