A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m while applying the force and the ball goes up to 2 in height further, find the magnitude of the force. Consider g = 10m/s 2

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 while applying the force and the ball goes up to 2 in height further, find the magnitude of the force. Consider g = 10m/s 2

Answer 1

A. 22N
B. 16N
C. 20N
D. 4N

Submitted by: Huzaifa Naseer

Mass ,m=0.2kg
Total height, h=0.2+2=2.2m
Work done =Difference in potential energy.
F.S=mgh where S is the distance for e hich the force is applied by hand,
S=0.2m
F=
S
mgh

=
0.2
0.2×10×2.2

F=22N

Correct Answer: 22N ✔

Last Updated: May 16, 2023