physics

posted by Carolyn

While sitting in a lounge chair with the back inclined at an angle of 10 degrees from the vertical, you tuck a pillow between your head and the chair. Then you lower the chair back to 40 degrees and doze with the pillow in place. How has the net force on the pillow changed?

  1. Damon

    Less compression in your neck and more weight of your head on the pillow.

  2. roy

    the key is "net force".
    in both cases acceleration is zero. therefore net force is also zero. Newton's second law, Fnet = mass * accel

Respond to this Question

First Name

Your Answer

Similar Questions

  1. Physics

    A chair of weight 85.0 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 44.0 N directed at an angle of 42.0 degrees below the horizontal and the chair slides along the floor. …
  2. physics

    i need help i don't understand how to do this problem so please help me. A student lifts a 5kg chair 0.8m off the floor, walks at a constant speed for a distance 10m, and then puts the chair back down on the floor. calculate the total …
  3. algebra

    You are shopping for an executive desk chair at The Furniture Gallery. You see two you like on sale. Chair A was originally $119.99 now on sale for $79.99 and Chair B was originally $149.99 now on sale for $89.99. Calculate the markdown …
  4. help me please

    You are shopping for an executive desk chair at The Furniture Gallery. You see two you like on sale. Chair A was originally $119.99 now on sale for $79.99 and Chair B was originally $149.99 now on sale for $89.99. Calculate the markdown …
  5. Math

    Meagan is sitting in a rocking chair, the distance d(t-) between the wall and the rear of the chair varies sinusoidally with time t. At t = 1s , the chair is closest to the wall and d(1) = 18 cm. At t = 1.75s the chair is farthest …
  6. Physics

    Draw a free body diagram and Apply Newton's 2nd law in both direction. 60 kg chair is pulled along a rough horizontal surface under the action of a 200N force 30 degrees up from horizontal, as shown the acceleration of the chair is …
  7. physics

    A chair of mass 14.5 kg is sitting on the horizontal floor; the floor is not frictionless. You push on the chair with a force F = 35.0 N that is directed at an angle of 43.0 ∘ below the horizontal and the chair slides along the …
  8. Science

    Diana is moving into a new apartment. She wants to get a heavy chair up to her second-floor apartment, but it will only fit through the window. Diana could strap the chair to her back and climb a ladder straight up to her window. Or …
  9. English

    1. I hit the chair in front of me. 1-1. I hit the chair in front of myself. 2. I hit the chair before me. [They are okay. They are the same. By the way, do you use #1-1?
  10. English

    1. The girl on the chair looks back. 2. The girl in the chair looks back. 3. The girl at the chair looks back. ----------------------------------------------- Does #1 mean #2?

More Similar Questions