120 minutes=2 hours
20/2= 10mph
A vector quantity is defined by magnitude and direction. For example, we might say that a car has an average speed of 25 miles per hour. Its average velocity might be 25 miles per hour due east.
Answer:
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Explanation:
Answer:
The velocity of ball and man after catching ball is 
Explanation:
Since there is no friction and no external force the momentum is conserved .
Here when man catches ball then man and ball move with common velocity .
Let the final common velocity be
,
Given that mass of the ball is
=
Given that mass of man is 
Initial velocity of ball = 
Now considering momentum conservation

