Question
A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m which applying the force and the ball goes upto 2 m height further, find the magnitude of the force. Consider g = 10 m/s2
-
22 N
-
4 N
-
20 N
-
30 N
Solution
C.
20 N
mgh = Fs
F = 20 N
