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Velocity-time graph of a particle moving in a straight line is shown in figure, In the time interval from t=0 to t=14 s, find average speed of the partcile?
 

Velocity-time graph of a particle moving in a straight line is shown in  figure. In the time interval from t = 0 to t = 14 s, find <img  src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/DCP_V01_CH6_E01_097_Q01.png"  width="80%"> (a) (a)"> (a)">

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a
50 m/s
b
70 m/s
c
10 m/s
d
850 m/s
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detailed solution

Correct option is C

Displacement s= net area of v-t graph =40+40+40-20=100 mDistance d=∣Total area∣  =40+40+40+20=140 mAverage speed =dt=14014=10 m/s

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