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A particle moves in a circle of radius R...

A particle moves in a circle of radius R. In half the period of revolution its displacement is ………… and distance covered is ………. .

Text Solution

Verified by Experts

The correct Answer is:
`2pi,pir`
Displacement = 2r.
Distance `= pir`.
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Knowledge Check

  • A particle is moving in a uniform circular motion with radius'r' in half revolution the displacement and distance covered by the particle are

    A
    `2r, 2pi r`
    B
    `1.414 r, 3.142 r`
    C
    `2r,pi r`
    D
    `pi r, 2r`

  • If a particle covers half the circle of radius R with constant speed then

    A
    Momentum change is mvr
    B
    Change in K.E is `1//2 mv`
    C
    Change in K.E is mv
    D
    Change in K.E is zero

  • A particle of mass m is moving along a circle of radius r with a time period T . Its angular momentum is

    A
    `(2pimr)/T`
    B
    `(4pimr)/T`
    C
    `(2pimr^(2))/T`
    D
    `(4pimr^(2))/T`