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v-t Graph

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Question

The following table represents the velocity of a moving body at different instants of time.
Times (s) 0 5 10 15 20 25 30
Velocity $(m s^{- 1})$ 10 15 20 20 30 15 0
The velocity-time graph is as shown in figure. For which interval of time the body has a uniform motion ? Find the velocity in this time interval ?

from t = 0 s to t = 5 s; 10 m/s

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from t = 5 s to t = 10 s; 20 m/s

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from t = 10 s to t = 15 s; 20 m/s

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from t = 15 s to t = 25 s; 30 m/s

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Solution

The correct option is B from t = 10 s to t = 15 s; 20 m/s
According to above graph we conclude that the body has uniform motion from t $=$ 10 s to t $=$ 15 s in part 'bc'. Velocity is constant and is equal to $20 m s^{- 1}$ during this interval.

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The following table represents the velocity of a moving body at different instants of time.Times (s)051015202530Velocity (ms−1)1015202030150The velocity-time graph is as shown in figure. For which interval of time the body has a uniform motion ? Find the velocity in this time interval ?

The correct option is B from t = 10 s to t = 15 s; 20 m/sAccording to above graph we conclude that the body has uniform motion from t=10 s to t=15 s in part 'bc'. Velocity is constant and is equal to 20ms−1 during this interval.

The correct option is B from t = 10 s to t = 15 s; 20 m/s
According to above graph we conclude that the body has uniform motion from t $=$ 10 s to t $=$ 15 s in part 'bc'. Velocity is constant and is equal to $20 m s^{- 1}$ during this interval.