Question

you throw a tennis ball (mass 0.0570 kg ) vertically upward. it leaves your hand moving at 15.0 m/s . air resistance cannot be neglected, and the ball reaches a maximum height of 8.00 m . by how much does the total mechanical energy decrease from when the ball leaves your hand to when it reaches its maximum height? what is the magnitude of the average force of air resistance?

Answer 1

6.84 joule is the total mechanical energy or potential energy decrease from when the ball

m=0.057

u=15.0

v=0

h= 8 m

mechanical energy or potential energy= mah

a=v-u

a=-15m/s²

potential energy= mah

potential energy=0.05×15×8

potential energy=6.84 joule

Potential energy is a form of stored energy that is dependent on the interactions between different system components. When a spring is compressed or expanded, its potential energy increases. If a steel ball is raised above the ground as opposed to falling to it, it will have higher potential energy. It can perform more work the higher it is lifted. Potential energy is a characteristic of systems rather than a characteristic of particular units or particles. For instance, as Earth and the elevated ball move apart, their combined potential energy rises.

Potential energy is produced by systems whose component configurations, or relative positions, influence the magnitude of the forces they exert against one another.

To know more about   potential energy visit : brainly.com/question/28988147

#SPJ4