Physics

posted by .

The stored potential energy in the trampoline at maximum compression, (1/2) k X^2, equals the gravitational potential energy at maximum height, M g H. (Kinetic energy is zero in both cases)
X = 0.5 m
g = 9.8 m/s^2
H = 2.5 m
k = the spring constant.
Solve for k.
k = 2MgH/X^2

A 115 kg man is jumping on a trampoline. If the trampoline is compressed .5 meters and the maximum height is 2.5 meters above the trampoline, what is the spring constant?

  • Physics -

    A Knight of the Round Table fires off a vat of burning pitch from his catapult at 14.5 m/s, at 33 ◦ above the horizontal.
    The acceleration of gravity is 9.8 m/s2 . How long is it in the air?
    Answer in units of s

  • Physics -

    10.47

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. PHYSICS helppppp

    A 0.2 kilogram baseball is thrown vertically downwards towards to the same horizontal floor. The baseball possesses an initial velocity of 30 meters per second. The height is 10.00m. (A) Calculate the POTENTIAL GRAVITATIONAL ENERGY …
  2. physics

    I'm given a spring that has a mass of 100 g and a constant of 22 N/m with an A of 5 cm I belive the A is amplitude and I'm asked for the Total Energy which i don't know how to do the max velocity also have no idea how to do and the …
  3. Physics

    This is a four part question, I need help with the fourth part. 1. I found the Gravitational Potential Energy of a gymnast at her maximum height above a trampoline to be 400J. 2. I found the Kinetic Energy of her just before she makes …
  4. Physics

    I need help with part b, c, and d please! A 45 g mass is attached to a massless spring and allowed to oscillate around an equilibrium according to: y(t) = 1.4 * sin( 4 * t ) where y is measured in meters and t in seconds. -------------------------------------------------------------------------------- …
  5. science(answer please)

    please answer these 1.what similarities do nuclear energy and chemical energy share?
  6. science

    1.what similarities do nuclear energy and chemical energy share?
  7. Physics

    Consider a simple frictionless roller-coaster. It begins at x = 0, at a height of y = H. Then it drops into a dip, reaching a minimum at x = 100, with zero height (y = 0). Finally, it goes back up at x = 200, but only reaches a height …
  8. 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?
  9. Physics -- 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?
  10. Science (energy)

    1. What similarities do nuclear energy and chemical energy share?

More Similar Questions