Question

5.
The radius of circle, the period of revolution, initial
position and sense of revolution are indicated in the
figure
P(t = 0)
T= 4
y - projection of the radius vector of rotating particle
P is
[NEET-2019​

Answer 1

Explanation:

The answer is 5.

The radius of circle, the period of revolution, initial

position and sense of revolution are indicated in the

figure

P(t = 0)

T= 4

y - projection of the radius vector of rotating particle

P is

[NEET-2019

Answer 2

Thus the y - projection of the radius vector of rotating particle  P is y = 3 cos π  / 2 t

Explanation:

We are given that:

• P(t = 0)
• T= 4

At time "t" = 0

y displacement of the particle is maximum.

Therefore projection equation will be cosine function.

T = 4 s

ω =  2π  / T =   2π   / 4  =  2 π  rad/s

y = a cos ω  t

y = 3 cos π  / 2 t

Thus the y - projection of the radius vector of rotating particle  P is y = 3 cos π  / 2 t