Aracehorse is running with a speed of 20m/s along a straightway. what is the time it takes for the horse to cover 400m

here we have to calculate the time taken by a  Racehorse to cover a distance of 400 metre

as per the question the speed of the horse is 20 m/s

hence we have speed[V] = 20 m/s

the distance covered [S]=400 m

the relation between distance,time and the speed is given as

                       =

                       =20 second

hence the time taken by the horse is 20 second  [ans]

potential energy is directly proportional to height.

more height = more potential energy.

greatest increase in height = greatest increase in potential energy

where are the points with the greatest increase in height ?

has to be c-e or d-e .

unbalanced force

explanation: