Question

A particle starts from rest and traverses a
distance l with uniform acceleration, then moves
uniformly over a further distance 21 and finally
comes to rest after moving a further distance
31 under uniform retardation. Assuming entire
motion to be rectilinear motion, the ratio of
average speed over the journey to the maximum
speed on its way is​

Answer 1

Answer:

I think it's

average speed 21 +(-31)/2= 5

Explanation:

negative sign is because of retarding motion.