A particle is moving in a circular path with a constant speed. If `theta` Is the angular displacement, then starting from `theta=0` , the maximum and minimum change in the linear momentum will occur when value of `theta` is respectively

Options

A. `45^(@) and 90^(@)`
B. `90^(@) and 180^(@)`
C. `180^(@) and 360^(@)`
D. `90^(@) and 270^(@)`

Answer

c

Explanation

When `theta = 180^(@)`, the change in momentum is 2 mv. When `theta = 360^(@)`, the change in momentum ` = mv - mv = 0`