If you are trying to balance a seesaw and you have a higher mass on the left, should the mass on the right be placed at a greater distance or lower distance to balance it? Why?

1. The hip is stabilized, in part, by the gluteus medius muscle. Figure (a) represents a person standing on one leg and shows the hip as an inverted trapezoid, the femur as two line segments representing the neck and shaft, and a single line segment representing the hip muscle (red line). Figure (b) changes the scale in order to see the force components more easily, including a vector for the body's weight (W) and another for the muscle force needed to balance the hip (M). The femur connection with the hip is a ball-and-socket joint and is the location of the pivot in this model. Figure (c) shows the weight and muscle forces translated to a single lever arm where the pivot is the ball-and-socket joint. a) www.timvandevall.com b) M N W Assume all quantities are correct to 2 significant figures. Enter to 2 significant figures M = c) a) When standing on one leg, 5/6 of a person's weight is applied at the body's center of mass, as shown in the diagram. The other 1/6 is the mass of the leg…

A nervous diver stands at rest at the end of a 31 kg diving board as shown in the figure. If the mass of the diver is 123 kg and the board is 4.3 m long, what is the net torque exerted on the diving board due to gravity about the fixed end of the board? Assume the mass of the board is uniformly distributed, and be sure to include the proper sign for the torque.

If you and your friend are sitting on a seesaw and their masses are 60 kg and 80 kg, (a) how far you have to sit from the center of seesaw to balance it if your friend is sitting at 30 cm from the center on other side?  (b) What are torques created by each of you? What are the directions of torque?

When an acrobat walks on a tightrope, she extends her arms straight out from her sides. She does this to make it easier for her to catch herself if she should tip to one side or the other. Explain how this works.

A rigid body is rotating. Is it necessary that a net torque acts on the body?

Consider a teeter-totter that is made out of pine, shown below. A pineapple sits on one side of the teeter-totter, a distance 1.09 m from the pivot point, while an apple (non-pine) sits on the other side, a distance of 2.63 m from the pivot. If the pineapple has a mass 132 g, what must the mass of the apple be in order to balance the teeter-totter (i.e. to maintain rotational equilibrium)? [Answer in units of grams (g) with 3 sig figs but do not enter units with your answer]

The bones of the forearm (radius and ulna) are hinged to the humerus at the elbow. The biceps muscle connects to the bones of the forearm about 2.15 cm beyond the joint. Assume the forearm has a mass of 2.35 kg and a length of 0.445 m. When the humerus and the biceps are nearly vertical and the forearm is horizontal, if a person wishes to hold an object of mass 6.15 kg so that her forearm remains motionless, what is the force F exerted by the biceps muscle? 5 Humerus. F= Elbow. Biceps muscle Radius Ulna Hand N

A 100 kg man balances a boy with mass of 25 kg on a teeter-totter,If the man is at 2 meters from the fulcrum. The boy's distance from the fulcrum is 12 m 16 m 4 m 8 m

You push on the door as shown in the drawing. Calculate the torque experienced at the door hinge.