physics

posted by .

Cliff divers at Acapulco jump into the sea from a cliff 37.1 m high. At the level of the sea, a rock sticks out a horizontal distance of13.39 m. The acceleration of gravity is 9.8 m/s^2. With what minimum horizontal velocity must the cliff divers leave the top of the cliff if they are to miss the rock?

  • physics -

    h = Vo*t + 0.5g*t^2 = 37.1 m.
    0 + 4.9t^2 = 37.1
    t^2 = 7.57
    t = 2.75 s.

    d = V*t = 13.9 m.
    2.75V = 13.9
    V = 5.05 m/s.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    A car is parked near a cliff overlooking the ocean on an incline that makes an angle of 21.7◦ with the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from …
  2. norma

    A person standing at the edge of a seaside cliff kicks a stone over the edge with a speed of 12 m/s. The cliff is 41 m above the water’s surface, How long does it take for the stone to fall to the water?
  3. physics

    An autographed baseball rolls off of a 0.82 m high desk and strikes the floor 0.28 m away from the desk. How fast was it rolling on the desk before it fell off?
  4. physics

    A 4.2 kg rock is initially at rest at the top of a cliff. Assume that the rock falls into the sea at the foot of the cliff and that its kinetic energy is transferred entirely to the water. How high is the cliff if …
  5. physics

    A robot probe drops a camera off the rim of a 437 m high cliff on Mars, where the free-fall acceleration is 3.7 m/s 2 . Find the velocity with which it hits the ground. Answer in units of m/s
  6. physics

    An autographed baseball rolls off of a 0.67 m high desk and strikes the floor 0.37 m away from the desk. How fast was it rolling on the desk before it fell off?
  7. Physics

    A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 10.6 m/s. The cliff is 25 m above a flat, horizontal beach. A.) How long after being released does the stone strike …
  8. physics

    A robot probe drops a camera off the rim of a 291 m high cliff on Mars, where the free-fall acceleration is 3.7 m/s 2 . Find the velocity with which it hits the ground. Answer in units of m/s Find the time required for …
  9. Physics

    A person standing at the edge of a seaside cliff kicks a stone over the edge with a speed of 21 m/s. The cliff is 52 m above the water’s surface. How long does it take for the stone to fall to the water?
  10. physics

    A 3.6 kg rock is initially at rest at the top of a cliff. Assume that the rock falls into the sea at the foot of the cliff and that its kinetic energy is transferred entirely to the water. How high is the cliff if …

More Similar Questions