Tomer runs up a flight of stairs with a total change in energy AET.Jeff exerts half the amount of energy in the same amount time. How does Tomer's power output, Pr compare with Jeff's power output, Pj?

0.44 m/s^2

Explanation:

initial velocity = 0  (since the child starts from rest)

distance covered by the child = 2 m (the length of the slide)

time taken = 3 sec

acceleration of the child = ?

using Newton's equation of motion

s =

where s is the distance covered by the child

u is the initial velocity

a is the acceleration

t is the time spent

substituting values, we have

2 = 0(3) +

2 = 9a/2

4  = 9a

a = 4/9 = 0.44 m/s^2