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Your car is stuck in a mud hole. You are alone, but you have a long, stong rope. Having studied physics, you tie the rope tautly to a telephone pole and pull on it sideways.
a) Find the force exerted by the rope on the car, when the angle theta is 3 degrees, and you are pulling with a force of 400, but the car does not move.
b) How strong must the rope be if it takes a force of 600N on your part to move the car when theta is 4 degrees?
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A 500-g mass hangs from a 45.0-cm-long string that is fixed at the top. The mass is pulled slightly aside and allowed to swing back and forth as a pendulum. What is the frequency (in Hz) of the pendulum
A block of mass 2 kg is kept at rest as it compresses a horizontal massless spring (k = 120 N/m) by 8.52 cm. As the block is released, it travels 0.611 m on a rough horizontal surface before stopping. The acceleration of gravity is 9.8 m/s2 . Calcula..
A 1.81 kg block and a 3.62 kg block are initially at rest on a frictionless, horizontal surface, How much does the kinetic energy of the system increase
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