Question

5. Find the kinetic energy of a cricket ball of mass 200g
moving with a speed of 20m/s.​

Answer 1

Answer:

K.E =½mv² , m=200 g convert it into kg (SI UNIT), v (velocity) = 20 m/s do square of ti 400 m/s and just calculation is there

Answer 2

Answer:

Hence the required KE = 40,000 Joules

Explanation:

Given,

Mass of the ball = 200 g (m)

Velocity of the ball = 20 m/sec (v)

Let the Kinetic Energy by K.E. ,

Then,

K.E. = 1/2 mv^2

By applying the values, we get

=> KE = 1/2 × 200 × 20 × 20

=> KE = 40,000 Joules

Hence the required KE = 40,000 Joules