Q5 Q19 Choose the correct formula for the displacement d from the rest position of the object attached to the spring at time t.

Question

asked Mar 12, 2019 28.6k views

1 Answer

Nel · Answer 1 · 2019-03-19T03:11:26+0000

t=0, d=0 so ans B is wrong

t=0, dd/dt <0 as it is propelled downward so ans C is wrong

ang vel = 2
$\pi$ / period

= 2
$\pi$ / 4.5

= 4
$\pi$ / 9

so D is the correct answer