80. When a wood shelf of mass 6.6 kg is fastened inside a slot in a vertical support as shown in Fig. 9–92, the support exerts a torque on the shelf. (a) Draw a free-body diagram for the shelf, assuming three vertical forces (two exerted by the support slot-explain why). Then calculate (b) the magni- tudes of the three forces and (c) the torque exerted by the support (about the left end of the shelf). - 32.0 cm 3.0 cm FIGURE 9-92 2.0 cm Problem 80.

80. When a wood shelf of mass 6.6 kg is fastened inside a slot in a vertical support as shown in Fig. 9–92, the support exerts a torque on the shelf. (a) Draw a free-body diagram for the shelf, assuming three vertical forces (two exerted by the support slot-explain why). Then calculate (b) the magni- tudes of the three forces and (c) the torque exerted by the support (about the left end of the shelf). - 32.0 cm 3.0 cm FIGURE 9-92 2.0 cm Problem 80.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

You must lean quite far forward as you rise from a chair (try it!). Explain why.
A woman stands on the end of a 12 m long uniform beam that has a pivot 3 m from the end the woman is standing on. If the beam is balanced and the woman has a mass of 80 kg, then what must the mass of the beam be? A) 20 kg, b) 40 kg, c) 80 kg, d) 160 kg or e) it would be impossible for the beam to be balanced.
'A model for the elbow joint models the bicep muscle connecting to the horizontal forearm by a vertical tendon 4cm from the elbow joint. A mass m is held in the hand 30cm from the elbow joint. If the maximum tension that can be exerted by the tendon before injury occurs is 2250N, find the maximum mass that can be held in this way.' Im stuck on this question
(5) We typically place our arms out for when we are crossing a narrow beam/rope. Is it because: (a) The larger leg muscles are unable to be used so we use the arms for leverage to bring our line of gravity back inside base of support; (b) To make our body area wider so the base of support is wider and line of gravity falls within it; (c) To make our body area wider so center of gravity naturally becomes lower and the body is more stable; (d) To utilize force summation to use larger muscles to bring us back into balance
Jatapra
Why is it not possible to sit upright in a chair and rise toyour feet without first leaning forward?
This is a static of rigid bodies problem
KPECTED HAS OCCU... Subject ystem S- rchpool.sona- ems.com man Subject Pool tem Department... 6³ 2 [108 W 24,919 Xx :8: F2 3 6. A 150 kg uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. Calculate the magnitude of the tension in the wire if the angle between the cable and the horizontal is 8 = 46°. X 1832.64 N E 20 F3 $ 4 R HEATRA MAL 2 7 F4 % 5 T F5 ^ 6 tv ♫ MacBook Air F6 Y & 7 44 F7 U M M | L T E 10 * 8 0 30.0⁰ DII F8 ( 9 Beam A DD F9 O O W F10 zoom B P C F11 ISUIH by mi 04 M vauies or roc puffer d + = F12 delete
A wheelbarrow with w weight of 150N is used to lift a load with a weight of 900 N. The length from the wheel axle to the center of gravity (COG) of the load is 2 ft, and the distance to the (COG) of the wheelbarrow is 1.5 ft. The length from the wheel axle to the hands is 5 ft. The wheelbarrow is also tilted at an angle of 30 degrees with respect to the horizontal. Calculate the motive force required to hold the wheel barrow
'A model for the elbow joint models the bicep muscle connecting to the horizontal forearm by a vertical tendon 4cm from the elbow joint. A mass m is held in the hand 30cm from the elbow joint. If the maximum tension that can be exerted by the tendon before injury occurs is 2250N, find the maximum mass that can be held in this way.' Im stuck on this question
A person can safely lie on a bed of nails without hurting herself, compared to stepping accidentally on single protruded nail. Explain
3) To strengthen his arm and chest muscles, a 6-slug athlete who is 6'6" tall is doing push-ups as shown in the figure below. His centre of mass is 3'9" from the bottom of his feet, and the centres of his palms are one foot from the top of his head. Find the force that the floor exerts on each of his feet and on each hand, assuming that both feet exert the same force and both palms do likewise. Begin with a free-body diagram of the athlete. 6'6" K–1'-