physics

posted by .

A diver runs and dives off the end of a spring board that is 0.9 meters above the surface of the water. As she takes off from the diving board, her velocity is 5.2 m/s directed 36° above horizontal calculate:

a) the time she is in the air

s
b) the distance she lands from the board (measured horizontally from the end of the board) m
c) the maximum height she attains above the surface of the water

m

  • physics -

    the velocity v comprises x- and y- components:

    vx = 5.2 cos36° = 4.2
    vy = 5.2 sin36° = 3.1

    y = 0.9 + 3.1t - 4.9t^2
    y=0 when t=0.85
    so, she is in the air 0.85 seconds

    x = 4.2t
    4.2(0.85) = 3.57m
    so, she lands 3.57m from the end of the board.

    y is max when t = -3.1/-9.8 = 0.32
    y(.32) = 1.39
    max height is thus 1.39m above the water

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    A swimmer runs horizontally off a diving board with a speed of 3.14 m/s and hits the water a horizontal distance of 2.16 m from the end of the board. How high above the water was the diving board?
  2. Physics

    A diver runs horizontally off the end of a diving board with an initial speed of 1.25 m/s. If the diving board is 3.20 m above the water, what is the diver's speed just before she enters the water?
  3. physics

    A diver runs horizontally off the end of a diving board with an initial speed of 1.75 sec. If the diving board is 3.0 m above the water line, what is the diver’s speed just before she enters the water?
  4. AP Physics

    A 45 kg gymnast steps off a platform located 1.3 m above a spring board. The spring board compresses 25 cm. a)What is the spring constant of the spring board?
  5. Physics

    A diver (mass = 75.0 kg) walks to the end of a flexible diving board. The end of the board bends down a distance of 0.55 m. The diver's weight on the diving board makes it behave like a spring. a) Determine the spring constant of the …
  6. Physics

    At the local swimming pool, the diving board is elevated h = 7.5 m above the pool surface and overhangs the pool edge by L = 2 m. A diver runs horizontally along the diving board with a speed of v0 = 3.4 m/s and then falls into the …
  7. physics

    Consider a case in which a 60 kg diver takes off from a diving board located at a height of 10 m above the water level and enters the water at a horizontal distance of 5 m from the end of the board. If the total time that the diver …
  8. URGENT PHYSICS

    Consider a case in which a 60 kg diver takes off from a diving board located at a height of 10 m above the water level and enters the water at a horizontal distance of 5 m from the end of the board. If the total time that the diver …
  9. physics 2 HELP PLEASE!!

    Can someone help break this down.. Please tell me if what I identified is so far correct. Also what equations should I use?
  10. Physics PLEASE PLEASE HELP! CONFUSED

    I am so lost and confused right now with this question. I might have a quiz. Help me understand before this pop quiz!!!! THANKYOU A diver runs horizontally with a speed of 1.2 m/s off a platform that is 10.0 meters above the water. …

More Similar Questions