Question

A particle of mass 1kg is moving in a S.H.M with an amplitude of 0.02m and a frequency of 60Hz. The maximum force acting on the particle is :

• A. $2.88\times {10}^3$N
• B. $1.44\times {10}^3$N
• C. $5.67\times {10}^3$N
  
• D. $0.75\times {10}^3$N

Answer 1

The correct option is A $2.88\times {10}^3$N

$f=60Hz$
$w=2\pi f=120\pi rad/sec$
$F=m{w}^{2}A$
$=1kg\times 14400\times {\pi }^2\times 0.02$
$=2.88\times {10}^{3}N$