Question

7. If 5 m/s and 10 m/s are the initial and final velocities of a body having a uniform acceleration in same time interval. What will be its average velocity? What will be the average velocity if the motion is not uniform?

Answer 1

Answer:

avg velocity=2v1v2/v1+v2

2(7)(10)/17

140/17

Answer 2

Average velocity(with same time interval) = v1+v2/2

= (5+10)/2 = 15/2 =

=7.5m/s

Average velocity ( with different time interval) = 2v1v2/v1+v2

= 2*5*10/5+10

= 100/15

=6.67 m/s