Physics For Class 9>Chapter 1 - Motion>Exercise>Q 3

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What is meant by uniform circular motion? Give two examples of uniform circular motion.

Important Questions on Motion

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Physics For Class 9>Chapter 1 - Motion>Exercise>Q 3

The tip of second’s hand of clock takes

60

seconds to move once on the circular dial of the clock. If the radius of the dial of the clock be

10.5

c m

, Calculate the speed of the tip of the second’s hand of the clock.

(Gi v e n π = \frac{22}{7})

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Physics For Class 9>Chapter 1 - Motion>Exercise>Q 4

Show by using the graphical method that

s = u t + \frac{1}{2} a t^{2}

, where the symbols have their usual meanings.

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Physics For Class 9>Chapter 1 - Motion>Exercise>Q 1

A scooter acquires a velocity of

36 k m h^{- 1}

in

10 s

just after the start. Calculate the acceleration of the scooter.

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Physics For Class 9>Chapter 1 - Motion>Exercise>Q 2

A car travelling at

60 k m h^{- 1}

uniformly retards for

10

seconds and reaches a velocity of

45 k m h^{- 1}

. Find its retardation.

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Physics For Class 9>Chapter 1 - Motion>Exercise>Q 3

A ship is moving at a speed of

56 k m h^{- 1}

. One second later it is found to be moving at

58 k m h^{- 1}

. What is the acceleration of the ship?

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Physics For Class 9>Chapter 1 - Motion>Exercise>Q 4

The graph given in figure shows the positions of the body at different times. Calculate the speed of the body as it moves from $A$ to $B$ .

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9th CBSE

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Physics For Class 9>Chapter 1 - Motion>Exercise>Q 4

The graph given in figure shows the positions of the body at different times. Calculate the speed of the body as it moves from $B$ to $C$ .

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9th CBSE

IMPORTANT

Physics For Class 9>Chapter 1 - Motion>Exercise>Q 4

The graph given in figure shows the positions of the body at different times. Calculate the speed of the body as it moves from $C$ to $D$ .

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