Question

how high must a body be lifted to gain a potential energy equal to the kinetic energy it s when moving at speed 20m/s​

Answer 1

Answer:

THE ANSWER IS 20.4m::::

GIVEN::

K.E = P.E  =>1/2MV​2=MGH ==>H=1/2V2/ g

PUTTING VALUES   >> H=1/2*20*20/9.8  ...20.4m

Explanation: