Physics

posted by .

A person doing a chin-up weighs 710 N, disregarding the weight of the arms. During the first 26.5 cm of the lift, each arm exerts an upward force of 356 N on the torso. If the upward movement starts from rest, what is the person's speed at this point?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    The forces acting on the arm of a person lifting a dumbbell. The force F is the force pulling on the hand due to the weight of the dumbbell, the force Warm is the weight of the arm and T is the tension due to the muscles connecting …
  2. Physics

    Paleontologists estimate that if a Tyrannosaurus rex were to trip and fall, it would have experienced an upward normal force of approximately 261,100 N acting on its torso when it hit the ground. Assume the torso has a mass of 3700 …
  3. Physics

    A chain composed of four identical links is suspended by a rope and does not move. How many force vectors would be drawn on the free body diagram of each link and which direction would they point?
  4. Physics

    A person doing a chin-up weighs 615.4 N, disregarding the weight of the arms. During the first 21.0 cm of the lift, each arm exerts an upward force of 435 N on the torso. The acceleration of gravity if 9.81 m/s 2 . If the upward …
  5. physics- please !

    A box weighing 65.0 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end. Part a) Determine the force that the table exerts on the box if the weight hanging on the …
  6. physics- please help !

    A box weighing 65.0 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end. Part a) Determine the force that the table exerts on the box if the weight hanging on the …
  7. Physics

    A person of mass 50kg rides an elevator whose motion consist of (a)acceleration upward at 3m/s (b)constant velocity (c)acceleration downward at 3m/s Given that g=9.8m-2 down, find the person's weight during each stage of the lift ride?
  8. physics

    When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver and thus slows him down. Suppose the weight of the sky diver is 905 N and the drag force has a …
  9. Physics

    When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver and, thus, slows him down. Suppose the weight of the sky diver is 852 N and the drag force has …
  10. physics

    When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver and, thus, slows him down. Suppose the weight of the sky diver is 869 N and the drag force has …

More Similar Questions