ap Physics

posted by .

AP PROBLEM CHILD ON A SWING

AN ADULT EXERTS A HORIZONTAL FORCE ON A SWING THAT IS SUSPENDED BY A ROPE OF LENGTH L, HOLDING IT AN AN ANGLE q WITH THE VERTICAL. THE CHILD IN THE WING HAS WEIGHT W AND DIMENSIONS THAT ARE NEGLIGIBLE COMPARED TO L. THE WEIGHTS OF THE ROPE AND OF THE SEAT ARE NEGLIGIBLE. IN TERMS OF W AND q DETERMINE



A) THE TENSION IN THE ROPE

B) THE HORIZONTAL FORCE EXERTED BY THE ADULT

THE ADULT RELEASE THE SWING FROM REST. IN TERMS OF W AND q, DETERMINE

C) THE TENSION IN THE ROPE JUST AFTER THE RELEASE (THE SWING IS INSTANTANEOUSLY AT REST)

D) THE TENSION IN THE ROPE AS THE SWING PASSES THROUGH IS LOWEST POINT

  • ap Physics -

    Is it common in AP classes to use all capital letters? Most teachers find it annoying and rude, like shouting.

  • ap Physics -

    A) T = W/cos(q) (b/c Tcos(q) = W)

    B) F = W*tan(q) (b/c F = Tsin(q)

    C) T = W*cos(q) (Find T so that acceleration is tangential to the circle)

    D) Not sure but if you want it in terms of W and q I used potential and kinetic energy in terms of L and then plugged it into my equation T = W + (W/10)(v^2/L). The L's cancel and I came up with T = W + 2W*cos(q). (note: i used g = 10 m/s^2)

  • ap Physics -

    CLICK THIS LINK TO HAVE THE BEST TIME OF YOUR LIFE! FIND SINGLES NEAR YOU! SINGLES THAT ARE READY TO HELP YOU IN PHYSICS and DO THE NAUGHTY AT THE SAME TIME!

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. PHYSICS

    A 27.0 kg child on a 3.00 m long swing is released from rest when the swing supports make an angle of 31.0° with the vertical. Neglecting friction, find the child's speed at the lowest position.
  2. physics

    Child weighs 29 kg on a swing supported by two chains. Another child pulls swing back to the chains to make 30 degree angle with the vertical. What force is exerted by each chain
  3. Physics

    A 40 kg child sits in a swing suspended with 2.5 m long ropes. The swing is held aside so that the ropes make an angle of 15 degrees with the vertical. Use the conservation of mechanical energy to determine the speed the child will …
  4. PHYSICS PLEASE HELP

    A 80- kg child sits in a swing suspended with 2.6- m-long ropes. The swing is held aside so that the ropes make an angle of 46 o with the vertical. Use conservation of energy to determine the speed the child will have at the bottom …
  5. Physics PLEASE HELP

    A 80- kg child sits in a swing suspended with 2.6- m-long ropes. The swing is held aside so that the ropes make an angle of 46 o with the vertical. Use conservation of energy to determine the speed the child will have at the bottom …
  6. Physics

    A 350 N child is in a swing that is attached to a 7.50 m long rope. find the gravitational potential energy associated with the child relative to her lowest position when a) the ropes are horizontal, (b) the ropes make a 30 degree …
  7. Physics

    A 35kg child is swinging on a swing with length 2.8m to the bottom of the seat. At the highest point of the swing, the rope makes an angle of 42 degrees from vertical. Calculate the speed of the child at the bottom of the swing. Assume …
  8. Physics

    A 50- kg child sits in a swing suspended with 3.8- m-long ropes. The swing is held aside so that the ropes make an angle of 48 o with the vertical. Use conservation of energy to determine the speed the child will have at the bottom …
  9. Physics

    A child swings from a rope of length L. If she starts her swing with the rope horizontal what is her acceleration at the bottom of the swing?
  10. physics

    a parent pushes a kid on a swing, A) If the child on the swing rises 2m above the lowest point during each cycle, what is her speed at the lowest point of the swing?

More Similar Questions