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?

  1. 👍
  2. 👎
  3. 👁
  1. mgh=1/2 mv^2

    intial PE=final KE

    solve for h.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Algebra

    Sinusoidal functions A pendulum is swinging back and forth. After t seconds, the horizontal distance from the bob to the place where it was released is given by H(t)=7−7cos( 2π(t−2)/20). How often does the bob cross its

  2. physics

    A 0.33- kg pendulum bob is attached to a string 1.2 m long and hangs vertically as shown in Figure 1. What is the change in the pendulum bob’s gravitational potential energy as it swings from the lowest point of the pendulum to

  3. physics

    As shown below, a bullet of mass m and speed v passes completely through a pendulum bob of mass M. The bullet emerges with a speed of v/2. The pendulum bob is suspended by a stiff rod of length and negligible mass. What is the

  4. science

    the string of pendulum is 2.0 m long,the bosy is pulled sideway so that the string becomes horizontal and the bob is released what is the speed with which the bob is released ?what is the speed with which the bob arrives the

  1. 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

  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 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

  3. physics

    ¬Calculate the period of oscillation of a simple pendulum of length 1.8 m, with a bob of mass 2.2 kg. What assumption is made in this calculation? (g = 9.8 m s - 2) If the bob of this pendulum is pulled aside a horizontal

  4. PHYSICS

    Fig. 6-48 shows a conical pendulum, in which the bob (the small object at the lower end of the cord) moves in a horizontal circle at constant speed. (The cord sweeps out a cone as the bob rotates.) The bob has a mass of 0.038 kg,

  1. Physics

    A simple pendulum has a bob of mass M. The bob is on a light string of length l. The string is fixed at C. At position A, the string if horizontal and the bob is at rest. The bob is released from A and swings to B, where the

  2. physics

    A certain pendulum with a 1.00 kg bob has a period of 3.50 s. What will happen to the period of the pendulum if the 1.00 kg bob is replaced by a bob with a mass of 2.00 kg? Explain your answer.

  3. physics

    a simple pendulum of length 0.2m has bob of mass 5gm, it is pulled aside through an angle 60 degrees from the vertical. a spherical body of mass 2.5gm is placed at the lowest position of the bob. when the bob is released it

  4. physics

    Consider a conical pendulum with an 80.0-kg bob on a 10.0-m wire making an angle of 5.00 with the vertical as shown. Determine (a) the horizontal and vertical components of the force exerted by the wire on the pendulum and (b)

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