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A ball is travelling with uniform transl...

A ball is travelling with uniform translatory motion. This means that

A

it is at rest

B

the path can be straight line or circular and the ball travel with uniform speed

C

all parts of the ball have the same velocity ( magnitude and direction) and the velocity is constant

D

the centre of the ball move with constant velocity and the ball spins about its centre uniformly

Text Solution

Verified by Experts

The correct Answer is:
C
( c) In a uniform translatory motion, all parts of the ball have the same velocity in magnitude and direction and this velocity is constant
The situation is shown in adjacent diagram where a body A is in uniform translatory motion.
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Knowledge Check

  • For a uniform motion.

    A
    the velocity-time graph is a straight line parallel to time axis
    B
    the position-time graph is a parabola
    C
    the acceleration-time graph is a straight line inclined with time axis
    D
    the position-time graph is a straight line

  • A ball attached to a string travels in uniform circular motion in a horizontal circle of 50 cm radius in 1 s. Sun light shining on the ball throws its shadow on a wall. The velocity of the shadow at the centre of the path is

    A
    `pi m//s`
    B
    `0.5pi m//s`
    C
    `0.5 m//s`
    D
    `1 m//s`

  • Assertion uniform circular motion is uniformly accelerated motion. Reason acceleration in uniform circular motion is always towards centre.

    A
    If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
    B
    If both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
    C
    If Assertion is true but Reason is false.
    D
    If Assertion is false but Reason is true.

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