Question

a player kick A ball of mass 250 gram placed at the centre of a field. the ball leaves his foot with a speed of 8m/s. find the work down by the player on the ball. ​

Answer 1

Answer:

8 joules

Explanation:

Work done is = Change in Kinetic Energy

Kinetic Energy = $\frac{1}{2}$mv²

m = 0.25 kgs (have to work in SI units)

v = 8 m/s

$\frac{1}{2}$ × 0.25 × 8² = 8