Gpe= 90* 9.81 * 15 = 13243.5 Joules
KE= 13243.5 =1/2 m v^2
v^2= 295.3
v= 17.2 m/s
Answer:
There is at least one instant which instantaneous acceleration is equal to average acceleration.
.
Explanation:
The average acceleration experimented by the car is:


According to the Rolle's Theorem, there is at least one instant t so that instantaneous acceleration equal to average acceleration for the analyzed interval. That is to say:

If car is accelerating at constant rate, instantaneous acceleration coincides with average acceleration for all instant t. Then, instantaneous acceleration is:

Answer:
this is just a guess bc i only looked at it for 5 seconds but i think 150 m/s
Machines makes work easier by increasing the amount of force that is applied, and changing the direction in which the force is applied !! Hope it helped (p.s. I had this same question)