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Advanced Physics
Chpt. 4 Review 2
Two boxes are suspended from a cord as shown. What is the tension on each strand and the acceleration of the system if box #1 is 4.5 kg and box #2 is 6.3 kg?
A 7.4 kg box slides down a 35o ramp at an acceleration of 0.545 m/s2. What is the friction force?What is the coefficient of kinetic friction m ?
A 0.95 kg hockey puck leaves the hockey stick at 23 km/hr. How far will it slide if m is 0.081?
a) What force is needed to accelerate a 4.5 kg book upward at 3.4 m/s2? b) What speed will it reach if the force is applied for 0.25 s? c) How high will it go?
What acceleration will a 34 kg box experience if it is pulled by a 150 N force that is applied at 24o above the horizontal. & What is the acceleration if m is 0.22?
What angle does a ramp have to be at so that a 16 kg box will slide down it at a constant speed if mis 0.31?& What would the acceleration be if m were reduced to .22 on the same ramp?& How fast would it be going when it hit the bottom if the ramp were 1.0 m high?
What would m have to be for my 144 g coffee cup to not slide off the dash of my
car if I were traveling at 77 km/hr and stopped in 66 m?
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