Question

The restoring force on the body of the above problem due to the spring when it is at its upper most position of its oscillation is
A. 160 N
B. 40 N
C. 60 N
D. 80 N

Answer 1

Correct Answer - B
When the body is at the uppermost position the compression of the spring takes place i.e.
`0.05-0.03=0.02`
`F=kxxx=2xx10^(3)xx0.02=40N`