ExamPlay Dark Logo
登入

JAMB - Physics (1994 - No. 6)

An object of mass 50kg is released from a height of 2m.Find the kinetic energy just before it strikes the ground
250J
1000J
10 000J
100 000J

解释

P.E = K.E = mgh

= 50 x 10 x 2 = 1000J

评论 (0)

广告