What is a perfect bounce in physics? ? is it force? high school physics, not middle school physics.

In the physics or the scientific world, each and every fact that occurs is connected with the forces of gravity. Gravity is the only thing which makes life possible on earth. Due to the impact of energies and laws of motion, the bounce occurs in physics. The collisions and other gravitational pull comes into consideration.

However, the bouncing is a temporary act and gets nullified after sometime. Work and force plays equally important role here. It is only because of this, everything in the universe exists. The movement of objects and its displacement is also associated with this. All the frictions and gravity comes under this.

given data:

determine the horse power (h.p) = ?

force applied to move the box(f) = 10 pounds,

box lifted from a distance         (d) = 3 feet

time taken to lift                         (t) = 10 sec,

the horse power is defined as amount of work required to move a load. the horse power is equal to 550 foot-pound per second

                  1 h.p   = 550 foot-pound/second

it can also be defined as the the load that need to be move a body for certain distance in a certain amount of time.

mathematically,

                      h.p = (force × distance)/ time

                            = (10 × 3)/ 10

                            = 30/10

                            = 3 foot -pound/sec

hence, the horse power is needed to move the box is 3 foot-pound/second

important note: 1 h.p = 550 foot-pound/second = 746 watts

i think the answer is a, hope this : )