physics

the maximum height a typical person can jump from a crouched start is about 60cm. By how much does the gravitational potential energy increase for a 72kg person in such a jump? Where does this energy come from?

I know the formula for gravitational potential energy is U=mgh. I just don't know what to plug in =/

  1. 👍 0
  2. 👎 0
  3. 👁 442
asked by physics
  1. 72 * 9.81 * 0.60 in Joules
    It comes from the kinetic energy at liftoff

    1. 👍 0
    2. 👎 0
    posted by Damon
  2. prove the law of conservation of energy in the case of a sliding body?

    1. 👍 0
    2. 👎 0
  3. 1. Given: m=72 kg; g (constant)=9.8 m/s^2; h= 60cm= .60m
    2. Use the gravitational potential energy formula: U=mgh.
    3. solve:
    U=mgh
    U=(72 kg)(9.8 m/s^2)(.60m)
    U=423.36 kg m/s^2

    1. 👍 0
    2. 👎 0
    posted by Jamaica

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    A person reaches a maximum height of 65cm when jumping straight up from a crouched position. During the jump itself, the person's body from the knees up rises a distance of around 50cm . To keep the calculations simple and yet get

    asked by Ash on October 1, 2014
  2. english

    what means typical and typical person? http://www.onelook.com/?w=*&loc=revfp2&clue=typical+person Typical person is an artificial concept of a person who has the average qualities of people as a whole. However, nobody is a typical

    asked by neeta on December 8, 2006
  3. Physics

    Two NBA players are revered for their ability to dunk a basketball, i.e., both players can jump very high. The first player is a tall, heavy center, and the second player is an average height, slim guard. The first player is 1.5

    asked by Anonymous on July 4, 2014
  4. Math

    h(t)= -204.8t sq 256t - find maximum height of jump where h(t) is height in inches and t is seconds after beginning jump

    asked by Patti on September 6, 2009
  5. Physics

    Michael Jordan, formerly of the Chicago Bulls basketball team, has some fanatic fans. They claim that he is able to jump and remain in the air for two full seconds from launch to landing. Evaluate this claim by calculating the

    asked by Kelly on October 11, 2010
  6. Physics

    An exceptional standing jump would raise a person 0.80 m off the ground. To do this, the person must first lower himself about 0.20 m prior to jumping. What force must a 70‒kg person, ready to jump at this position, exert

    asked by Chrxeyshthoufov on February 23, 2014
  7. physics

    Fleas can jump quite high; experiments show that they reach an altitude of 130 times their own height when they jump vertically! Suppose instead that a flea can jump so that it lands a maximum distance of 19.60 cm away. What is

    asked by jade on September 14, 2016
  8. Physics

    A flea can jump a vertical height h. What is the maximum horizontal distance it can jump? What is the time in the air in both cases?

    asked by William on November 15, 2017
  9. Calculus/Optimisation

    A skateboarded decides to jump off a ramp. The path of the jump from the ramp can be approximated by: h = -3t^2 + 6t + 1 Where h is the height above the ground in meters, s is the horizontal displacement and t is the time after

    asked by Monica on March 17, 2017
  10. bonar law

    Colonel Harry a. Froboess of Switzerland jumped upward and outward from a windonw of a blimp and landed in a body of water on June 22, 1936. His jump was 120m, about the height of a 40-storey building. The path of his jump can be

    asked by tina on December 5, 2010

More Similar Questions