Question

Four students are asked to write the displacement of a particle having periodic motion.They wrote the expression respectively as given below. Where A is the maximum distance of the particle from its rest position, w is the angular velocity, t is the time, l is the wavelength and v is the speed of the particle.Which of these expressions is correct?
A
y= A sin vt
B
y= A sin wt/v
C
y= A/2 sin 2lt
D
y= A sin wt

Answer 1

Explanation:

We know that for periodic motion

y =A sin (wt)