Physics

posted by .

A 90 kg person stands on the ground before jumping vertically upward. If momentum is truly conserved in all closed isolated systems, then the Earth-person system should conserve momentum. If the person jumps with a speed of 3.5 m/s, what is resulting speed of the Earth in the opposite direction? (Earth's is approximately 5.96 • 1024 kg)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    A disk-shaped merry-go-round of radius 2.63 m and mass 155 kg rotates freely with an angular speed of 0.596 rev/s. A 59.4 kg person running tangential to the rim of the merry-go-round at 3.68 m/s jumps onto its rim and holds on. Before …
  2. Physics

    Calculate the change in momentum in each of the following situations and state the direction of the change in momentum. a) A 4kg bowling ball strikes a stationary pin head-on at a speed of 3m/s. It continues to move in its original …
  3. AP Physics - Linear Momentum

    During a Chicago storm, winds can whip horizontally at speeds of 100 km/h. If the air strikes a person at the rate of 40 kg/s per square meter and is brought to rest, estimate the force of the wind on a person. Assume the person is …
  4. physics(check my answer)

    A 60.0 kg person bends his knees and then jumps straight up. After his feet leave the floor, his motion is unaffected by air resistance and his center of mass rises by a maximum of 14.9 cm. Model the floor as completely solid and motionless. …
  5. Physics

    In principle, anytime someone jumps up, the earth moves in the opposite direction. To see why we are unaware of this motion, calculate the recoil speed of the earth when a 65.0 kg person jumps upward at a speed of 1.70 m/s. v=?
  6. physics (elena)

    JUMPING OFF THE GROUND (10 points possible) A person of mass m jumps off the ground. Suppose the person pushes off the ground with a constant force of magnitude F for T seconds. What was the magnitude of the displacement of the center …
  7. physics

    JUMPING OFF THE GROUND (10 points possible) A person of mass m jumps off the ground. Suppose the person pushes off the ground with a constant force of magnitude F for T seconds. What was the magnitude of the displacement of the center …
  8. Physics

    Consider an isolated system consisting of two masses, each of which has a velocity vector in two dimensions. When these two masses collide the total momentum of the system is conserved. (a) Show that if the total momentum of the system …
  9. Physics

    An exceptional standing jump would raise a person 0.90 m off the ground. To do this, what force must a person of mass 66 kg exert against the ground?
  10. physics

    Does the momentum from the arms transfer to the body if you stop it when jumping?

More Similar Questions