Check answers please?

Use g=10 N/kg in this assignment.

1. What is the gravitational energy (relative to the unstretched surface of the trampoline) of the 20 kg ball at its apex 2 m above the trampoline?

I got 400 J

2. What is the kinetic energy of the ball just before impacting the trampoline?

I got 0 J

3. At maximum stretch at the bottom of the motion, what is the sum of the elastic and gravitational energy of the ball?

Is it because the sum of elastic and potential energy is equal to the change in gravitational energy from original position?

4. What conclusions can be drawn from the answers above

I'm not too sure what to put as my answer

  1. 👍
  2. 👎
  3. 👁
  1. I never heard of that school subject.

    1. 👍
    2. 👎
    👤
    Ms. Sue

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    what forms of energy are involved in the following situations? (choices: kinetic energy, potential energy - gravitational potential energy, elastic potential energy) a. a bicycle coasting along a level road b. heating water c.

  2. physics

    An unstretched ideal spring hangs vertically from a fixed support. A 0.4 kg object is then attached to the lower end of the spring. The object is pulled down to a distance of 35cm below the unstretched position and released from

  3. Physics

    An 8.0-kg history textbook is placed on a 1.25-m high desk. How large is the gravitational potential energy of the textbook-earth system relative to the desktop?

  4. physics

    A student lifts a 1.2 kg bag from her desk, which is 0.59 m high, to a locker that is 2.9 m high. What is the gravitational potential energy of the bag relative to the desk? PE=mgh 1.2(9.80)(2.9) = 34.1

  1. Science (energy)

    1. What similarities do nuclear energy and chemical energy share? Choose all that apply. A. Both are types of kinetic energy. B. Both are types of potential energy. [CORRECT!] C. Both involve magnetic energy. D. Both involve

  2. science(check answers)

    can someone check my answer thanks ! 2.The ability to do work or cause change is called A.velocity. B.energy.(I PICK B.) C.transfer. D.friction. 3.Which type of energy is demonstrated by a person jogging? A.electrical energy

  3. science

    Which of the following is not an example of potential energy? Chemical energy gravitational energy mechanical energy*** nuclear energy

  4. Physics

    A 1.9 kg ball is attached to a ceiling by a string. The distance from the ceiling to the center of the ball is 1.13 m, and the height of the room is 3.00 m. (a) What is the gravitational potential energy associated with the ball

  1. Physics

    Consider the gravitational potential, kinetic, and total mechanical energies of a cart moving down an inclined ramp. (Also, let gravitational potential energy be defined to be zero when the cart is at the bottom of the ramp. A.

  2. Science

    A student is trying to identify the different forms of energy described in the following chart: Form of Energy Description Examples Energy A energy that travels in waves through space light radio waves Energy B energy that depends

  3. Physics

    Briefly describe the relative quantities of kinetic, gravitational potential and mechanical energy as a stone is thrown in the air vertically upward and falls to the person's hand at the same height that it left.

  4. Physics

    A thrill-seeking cat with mass 4.00 kg is attached by a harness to an ideal spring of negligible mass and oscillates vertically in SHM. The amplitude is 0.050 m, and at the highest point of the motion the spring has its natural

You can view more similar questions or ask a new question.