Question

The velocity-time graph of a ball of mass 30 moving along a straight line on a long table is given below. How

much force does the table exert on the ball to bring it to rest?
​

Answer 1

Answer:

Here, m=30g×(10^-3)kg

Explanation:

Initial speed= u= 30cm/s

=0.3m/s

Final speed= v = 0

Time taken= 10s

F= ma= m( v- u) / t

= { 20 ×[10^(-3)]} ( 0×0.3) /10

=2×10^3.