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A ball is thrown up in the sky. After reaching a height, the ball falls back. What can be said about the average velocity?(a) It is non zero(b) It is zero(c) It is greater than zero(d) It is less than zeroThe question was posed to me in my homework.I'm obligated to ask this question of Straight Line Motion topic in division Motion in a Straight Line of Physics – Class 11

Answer»

Right answer is (B) It is zero

Easiest EXPLANATION: The average VELOCITY is zero. The ball covers positive displacement when it goes up and negative displacement when it comes down. HENCE the TOTAL displacement is zero. Therefore, the average velocity is zero.



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