Physics

posted by .

A pendulum bob is released from some initial
height such that the speed of the bob at the
bottom of the swing is 1.5 m/s.
The acceleration of gravity is 9.81 m/s
2
.
What is the initial height of the bob?
Answer in units of m

  • Physics -

    Initial PE=final KE at bottom
    mgh=1/2 mv^2
    solve for h.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics-energy

    HI well i have two questions 1) a 2.0-m-long pendulum is released from rest when the support string is at an angle of 25 with the vertical. what is the speed of the bob at the bottom of the swing?
  2. physics

    A pendulum bob is released from some initial height such that the speed of the bob at the bottom of the swing is 3.2 m/s. The acceleration of gravity is 9.81 m/s 2. What is the initial height of the bob?
  3. physicsURGENT

    An 85 cm long pendulum with a 0.80 kg bob is released from rest at an initial angle of θ0 with the vertical. At the bottom of the swing, the speed of the bob is 2.8 m/s. What angle does the pendulum make with the vertical when …
  4. physics

    suppose a simple pendulum was released from an angle of 58 degrees, with a length of 0.75m and mass of .15kg. what would be the speed of the bob at the bottom of the swing?
  5. physics

    A frictionless pendulum is made with a bob of mass 19.7 kg. The bob is held at height = 0.934 meter above the bottom of its trajectory, and then pushed forward with an initial speed of 2.93 m/s. What amount of mechanical energy does …
  6. Physics

    A pendulum bob is released from some initial height such that the speed of the bob at the bottom of the swing is 1.9m/s. What is the initial height of the bob?
  7. physics

    a 1.00 kg pendulum bob is released from a height of .200m. its speed at the bottom of its swing is 1.95m/s on the first pass. how much energy is lost due to friction during one complete swing?
  8. Physics

    A pendulum is released from some height. When it reaches the bottom of its swing, its speed is 2.5 m/s. What is the initial height of the pendulum?
  9. Physics

    A pendulum is released from some height. When it reaches the bottom of its swing, its speed is 2.5 m/s. What is the initial height of the pendulum?
  10. introductory to physics

    A pendulum bob is released from some initial height such that the speed of the bob at the bottom of the swing is 4.0 m/s. The acceleration of gravity is 9.81 m/s 2 . What is the initial height of the bob?

More Similar Questions