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CBSE Class 9 Answered

Is the displacement of an athlete and the distance moved by him at the distance moved by him at the end of the rays equal.
Asked by ABHILASHA | 16 Apr, 2017, 11:43: AM
answered-by-expert Expert Answer
NO, the distance moved by the athlete and the displacement by him are unequal. His displacement is zero and distance moved is 800 m. 
Answered by Yashvanti Jain | 17 Apr, 2017, 11:38: AM

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CBSE 9 - Physics
A boy of mass 45 kg running 6 m/s jumps onto a 30 kg trolley moving in the same direction at 1.5 m/s. Their common velocity will be: A. 4.0 m/s B. 4.2 m/s C. 6.5 m/s D. 8.3 m/  
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CBSE 9 - Physics
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