physics

posted by .

Refer to the equation you derived in exercise (4). Assume that
1 y = 0.30m and 2 y = 0.10 m. What is the initial total mechanical
energy if the pendulum is released from rest? What is the speed of
the pendulum bob at the lowest point if the total mechanical
energy is conserved?

  • physics -

    Is there some way we are supposed to know what exercise 4 is? My crystal ball is on the blink.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    The length of a simple pendulum is 0.82 m and the mass of the particle (the "bob") at the end of the cable is 0.69 kg. The pendulum is pulled away from its equilibrium position by an angle of 6.7 ° and released from rest. Assume that …
  2. 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?
  3. Physics

    The length of a simple pendulum is 0.72 m, the pendulum bob has a mass of 305 grams, and it is released at an angle of 10° to the vertical. a) With what frequency does it vibrate?
  4. physics

    A pendulum is initially displaced to a height 1 y above the table top, as in figure 1. It is released with an initial speed of 1 v = 0 . At the lowest point of its motion, it is at a height 2 y above the table top, and with a speed …
  5. physics

    A 2.48-kg rock is released from rest at a height of 28.1 m. Ignore air resistance and determine (a) the kinetic energy at 28.1 m, (b) the gravitational potential energy at 28.1 m, (c) the total mechanical energy at 28.1 m, (d) the …
  6. physics

    A 2.48-kg rock is released from rest at a height of 28.1 m. Ignore air resistance and determine (a) the kinetic energy at 28.1 m, (b) the gravitational potential energy at 28.1 m, (c) the total mechanical energy at 28.1 m, (d) the …
  7. Physics

    a 9.50-g bullet. moving horizontally with an initial speed vi , embeds itself in a 1.45-kg pendulum bob that is initially at rest. The length of the pendulum is L=0.745m. After the collision, the pendulum swings to one side and comes …
  8. physics

    A 3.56-kg rock is released from rest at a height of 15.2 m. Ignore air resistance and determine (a) the kinetic energy at 15.2 m, (b) the gravitational potential energy at 15.2 m, (c) the total mechanical energy at 15.2 m, (d) the …
  9. Physics Total Mechanical Energy

    What is the total mechanical energy of a 575 kg roller coaster that is at rest 50.0 m above the lowest point on the ride?
  10. Physics

    A pair of objects with masses 3m and m are connected by a hook and have a massless compressed spring between them. Initially the objects are at rest. Then the hook unlatches, the spring expands to its released length and the larger …

More Similar Questions