An object of mass m = 0.670 kg is suspended from the celling öf än acceleratih (a) Find the angle e that the string makes with the vertical. (b) Find the tension T in the string.

Find the tension in each cable supporting the 700-N cat burglar. (Assume the angle ? of the inclined cable is 38.0°.) (A) inclined cable,(B) horizontal cable, (C) vertical cable

Suppose you have a stack of 17 identical steel bars (steel bars have a mass of 1.00kg each). You are required to pull out bar number 16 from the stack (counting from the top of the stack down). Assuming that your assistant holds all other bars in place.   If the coefficient of friction between steel and steel is 0.750, how hard do you have to pull (in N)?

(a) What is the maximum frictional force (in N) in the knee joint of a person who supports 83.0 kg of her mass on that knee? 13.01 N (b) During strenuous exercise it is possible to exert forces to the joints that are easily ten times greater than the weight being supported. What is the maximum force of friction (in N) under such conditions? (The frictional forces in joints are relatively small in all circumstances except when the joints deteriorate, such as from injury or arthritis. Increased frictional forces can cause further damage and pain.) 105823.34 X N