A ball is thrown up in the sky. After reaching a height, the ball falls back. What can be said about the average velocity?

Category: QuestionsA ball is thrown up in the sky. After reaching a height, the ball falls back. What can be said about the average velocity?
Editor">Editor Staff asked 1 year ago

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 zero
 
The 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
Select the correct answer from above options 
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1 Answers
Editor">Editor Staff answered 1 year ago

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.