Question

plzzz ans this ques....its urgent.. ques 9

Answer 1

we know that F=mgh

F= (0.2)10(2)

F=2/10(10)2

F= 2x2

F=4N

option (3)

hope its helpful...@.@

Answer 2

Fs = mgh 

Here h will be the sum total of distance of hand and the original distance as here both KE and PE will work,

Here h=2+0.2=2.2

So, F = mgh/s

F=0.2×10×2.2/0.2

F=10×2.2

F=22N