The sailors wants to pull the boat through a cord and a pulley. How do you this this idea? Choose the answer It is a smart design. They will not Actually, the boat will move backward.

Pinky the cat sits on top of a pump handle that is 50 cm long. What is the torque generated by Pinky's weight of 30 N due to him sitting on top of the pump handle? 5 N-m O N-m 43 N-m 26 N-m 13 N-m 19 N-m

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A light cord passes over a frictionless pulley of negligible mass. A 6.00 kg mass is attached to one end of the cord and a 2.00 kg mass is attached to the other end. When allowed to move, the acceleration of the 2.00 kg mass will be what?

4. A meter stick has a pivot that is located at (35 cm). On this meter stick weplace 200 g @ 20 cm, 200 g @ 25 cm, 350 g @70 cm and 100 g @80 cm.The meter stick has a mass of 150 g. a. How much mass needs to be placed at 55 cm in order to balance themeter stick.__________________________ b. Where will you put 500 g in order to balance the meterstick?___________________________________   If you could clearly circle the answers I need, that would be great!  Thanks!

ASK YOUR TEACHER PRACTICE ANOTHER The chewing muscle, the masseter, is one of the strongest in the human body. It is attached to the mandible (lower jawbone) as shown in figure (a). The jawbone is pivoted about a socket just in front of the auditory canal. The forces acting on the jawbone are equivalent to those acting on the curved bar in figure (b). DETAILS SERCP11 8.3.P.033. Mandible magnitude of R magnitude of Masseter Need Help? -7.50 cm - 3.50 cm is the force exerted by the food being chewed against the jawbone, is the force of tension in the masseter, and is the force everted by the socket on the mandible. Find and i (in N) for a person who bites down on a piece of steak with a force of 53.5 N MY NOTES

You place a 5 kg brick at 1.25 m on the left side of a lever system. You place another 5 kg brick at 0.25 m on the left side as well. Where on the right side would you place a 30 kg rock to balance the system? A 0.5 m 0.25 m C 1.75 m D 1.25 m

8. Two loads of 50 kg and 75 kg are hung at the ends of a rope passing over a smooth pulley shown in below figure. The tension in the string is: 50 kg 75 kg (A) 50 kg (B) 75 kg (C) 25 kg (D) 60 kg

A 1.5 kg block is connected by a rope across a 50-cm-diameter, 2.0 kg pulley, as shown. There is no friction in the axle, but there is friction between the rope and the pulley; the rope doesn’t slip. The weight is accelerating upward at 1.2 m/s2. What is the tension in the rope on the right side of the pulley?

1:51 kık- M A A .content.blackboardcdn.com 5 46 Chapter 2 Problems 2.14 A box weighing 25 pounds (assumed concentrated at its center of gravity) is being pulled by a horizontal force F equal to 20 pounds. What is the moment about point A? Does the box tip over? 2.15 A large wood beam weighing 800 N is supported by two posts as shown. If an unthinking man weighing 700 N were to walk on the overhang portion of the beam, how far can he go from point A before the beam tips over? (Assume the beam is resting on the two supports with no physical connection.)