Question

a body of mass 2kg is thrown up vertically with K.E of 490 joules.if the acceleration due to gravity is 9.8 m/s^2,then the height at which the K.E of the body becomes half its orginal value is given by___
A)50 m
B)12.5 m
C)25 m
D)10 m

Answer 1

the answer is c 25m hope it help you