First slide

Simple hormonic motion

Question

A second's pendulum is mounted in a rocket. Its period of oscillation will decrease when the rocket is:

Easy

A

moving up with uniform velocity
B

moving up with uniform acceleration
C

moving down with uniform acceleration
D

moving in a geostationary orbit

Solution

when it is going up with acceleration effective value of g is g+a and T=2 $T = 2 π \sqrt{\frac{l}{g_{e f f e c t i v e}}}$

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