Question

A particle executing simple harmonic motion with an amplitude A.The distance travelled by the particle in one time period is

A)zero B)A C)2A D)4A

Answer 1

The answer is 4A if you are taking the amplitude to be A.

'A' for positive extreme, same for coming back to mean position, same for negative extreme and same for coming back to mean position. So it sums up to 4A.