Question

physics
pls answer fast​

Answer 1

Explanation:

1)

- > k. e = 1/2 mv²

ke is directly proportional to the mass and velocity of that body, so Ball A will have more ke .

Power = E / t = (1/2 mv² )/t

2)

-> Power of Ball B if it moves for 30 sec with the same velocity = (1/2 .(2) . (3)²) / 30

= 9 / 30 = 0.3 watt