The diplacement , velocity and acceleration in a simple harmonic motion are related as the

Options

A. displacement , velocity and acceleration all act in the same directionb
B. displacement and velocity act in the same direction but acceleration in the opposite direction.
C. velocity and acceleration are parallel and both are perpendicular to the displacement
D. displacement and acceleration are anti-parallel and both perpendicular to the velocity

Answer

B

Explanation

(b) For SHM, `alpha=-omega^(2)y`, where `alpha` is acceleration, `omega` is angular velocity , y is displacement . Hence, it is clear that acceleration is directly proportional to displacement and is always opposite to displacement.