Problem Set 2 & Solutions

Problem Set 2 & Solutions - Phys116 Problem Set 2 Due...

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Phys116 Problem Set 2 Due: Friday, Sept. 12, 2003 before the start of class. Please write your TA’s name at the top of your solution set. Communicate your reasoning in your solutions, concisely and clearly. Efforts are as important as correct answers. 1. While campaigning in California, imagine that Arnold Schwarzenegger finds himself on one cliff, separated by a chasm from a crowd of eager voters near a neighboring cliff. He wishes to jump over the chasm in a car. Here is a sketch of the situation: L h What is the minimum (horizontal) velocity required in order for the car to complete the jump successfully? You should approximate the car as a point object to keep things simple. Please do not try this at home. 2. A 40-kg girl and an 10-kg sled are on the surface of a frozen lake, 15 m apart. By means of a rope the girl exerts a 5-N (N stands for Newton) force on the sled, pulling it towards her. Assume that the frictional forces with the ice are negligible. (a) What is the acceleration of the sled?
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