Physics, 05.06.2021 22:20, Jbutler15

A 57g tennis ball is dropped from 1.22 m onto a hard surface, bouncing up to a maximum height of 0.70 m. a)What was the kinetic energy of the ball just before it hit the ground for the first time?
b)How much kinetic energy must the ball have when leaving the ground to bounce to the height of 0.70m?
c)Explain why the two energies in part (a) and (b) are different.

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 16:30, jinxjungkook3

Calculate the kinetic energy of earth due to its spinning about its axis. krot = j compare your answer with the kinetic energy of the orbital motion of earth's center of mass about the sun. assume earth to be a homogeneous sphere of mass 6.00 1024 kg and radius 6.40 106 m. the radius of earth's orbit is 1.50 1011 m.

Answers: 2

continue

Physics, 22.06.2019 02:00, gavergan

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

Answers: 2

continue

Physics, 22.06.2019 14:30, tiahna1g

What is the relationship between the direction of motion of the balloon and the wind currents

Answers: 1

continue

Physics, 22.06.2019 21:30, kiasiab17

While carrying a heavy box up the stairs, you set the box on a step and rest. then you pick up the box and carry it to the top of the stairs. describe these actions in terms of balanced and unbalanced forces acting on the box.

Answers: 1

continue

Do you know the correct answer?

A 57g tennis ball is dropped from 1.22 m onto a hard surface, bouncing up to a maximum height of 0.7...