Friction between the ball and the floor is stealing some of the kinetic energy of the ball, and turning it into heat.
Answer:
The average speed of the elevator going down in the abandoned mine is 17.722mph.
Explanation:
If the elevator takes 90 seconds to descend a height of 713m, the average speed of the elevator is:

And if 1m/s is 2.23694mph, the average speed is:
.
Answer:
Explanation:
applied Mechanics and its Growing Utilisation of Theoretical Mechanics.\
Structural Engineering.
Hydraulics.
Mechanical Engineering.
External Fluid Dynamics.
Planetary Sciences.
Life Sciences.
Answer:Gravity
Explanation:Gravity is the force that pulls everything down instead of up because if we didn’t have gravity we would be floating upwards