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
A
`0^(@) and 90^(@)`
B
`90^(@) and 180^(@)`
C
`180^(@) and 270^(@)`
D
`180^(@) and 360^(@)`
Text Solution
Verified by Experts
The correct Answer is:
D
When ` theta = 180^(@)` Change in monentum `=mv -(-mv ) = 2mv` This is maximum . When it will return to its intial position ` theta = 360^(@)` , and change in momentum `= mv - mv =0`. this is minimum
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