Question

a man drops a 10kg rock from the top of a 5m ladder.when it reaches the ground, find kinetic energy and speed are respectively.​

Answer 1

Explanation:

hope it's helpful to you if it is helpful plz mark as brainlist plzzzzzzzz plzzzzzz

Answer 2

Answer:   K.E. at bottom = 500 J

                v = √100  =  10 m/s

pls mark  me brainliest

Explanation:

[A]    K.E. at bottom = P.E at top

       K.E. at bottom = mgh

       K.E. at bottom = 10 × 10 × 5

       K.E. at bottom = 500 J

[B]   K.E. at bottom = 1/2 mv²

             500 = 1/2 × 10 × v²

               v² = 100

               v = √100  =  10 m/s