Two children are playing on two trampolines. The first child can bounce 1.6 times higher than the second child. The initial speed up of the second child is 5.2 m/s.
(a) Find the maximum height the second child reaches.
(b) What is the initial speed of the first child?
(c) How long was the first child in the air?

  1. 👍
  2. 👎
  3. 👁
  1. Yo= 0m
    Child A:
    Voa= ?
    Ya= 1.6h
    Ta= ?
    Child B:
    Vob= 5.2 m/s
    Yb= h
    a) Vob^2 = 2AYb
    Yb= Vob/2A
    h= (5.2 m/s)^2/(2(9.8m/s^2))
    h= 1.37m

    b) Voa=?
    Voa= sqrt(2AYa)
    Voa= sqrt(2(9.8m/s^2)(1.6(1.37)))
    Voa= 6.55m/s

    c) sorry but i can't figure out how to do c

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. English College composition I

    I need help on writing a thesis statement about child abuse/my story. so far this is what i have THESIS #1 "While other children were beaten to death or were abused in so many ways. I was one of the few who survived child abuse

  2. Supportive learning environment

    Which of the following statements is true regarding children living in poverty? A. You're more likely to be a child living in poverty if you're American Indian or African American. B. Children living in poverty tend to have more

  3. Physics

    A child bounces in a harness suspended from a door frame by three elastic bands. (a) If each elastic band stretches 0.210 m while supporting a 7.35-kg child, what is the force constant for each elastic band? 114.33 N/m (b) What is

  4. Statistics

    Achusband and wife with brown eyes who have 0.75 probability of having children with brown eyes, 0.125 probability of having children with blue eyes, and 0.125 probability of having children with green eyes. (a) What is the

  1. physics

    A superball is dropped from rest from a height of 2.0m. It bounces repeatedly from the floor, as superballs are prone to do. After each bounce the ball dissipates some energy, so eventually it comes to rest. The following pattern

  2. math

    A bouncy ball is dropped such that the height of its first bounce is 2.5 feet and each successive bounce is 76% of the previous bounce's height. What would be the height of the 6th bounce of the ball? Round to the nearest tenth

  3. Physics

    A 25 kg child bounces on a pogo stick. The pogo stick has a spring with spring constant 2.0*10^4 N/m. When the child makes a nice big bounce, he finds that at the bottom of the bounce he is accelerating upwards at 9.8 m/s^2. How

  4. Child Development

    1) The recording method that's most useful in discovering the causes or results of a child's behavior is A. rating scale. B. time sampling. C. event sampling. D. checklist. 2) One way a teacher can help a child stand up for her

  1. maths

    there are 7 children standing in a line ,not all of whom have the same number of cakes with them, if the first child distributes his cakes to the remaining six children such that he doubles their respective no.of cakes ,then he

  2. Grade 12 physics

    At the beach, 3 children pull on a floating toy. Child 1 plus with a force of 15N [N 24°E], child 2 pulls south and child 3 pulls west. The net force of the toy is zero. Assume that there are no other significant forces acting on

  3. Physics 1

    After each bounce, a ball reaches 1/2 the height of the previous bounce. First to second bounce = 1 second. How long between the second and the third bounce? Thanks

  4. Algebra 2

    A ball is dropped from 400 ft what is the height of the ball on the 6th bounce? 1 bounce =280 ft 2 bounce= 196 ft 3 bounce = 137.2 How do I figure this out?

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