chap eight q eleven
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why might an elevator cable break during acceleration when lifting a lighter load than it normally supports at rest or at constant velocity
Q5.13 You are pushing a large crate from the back of a freight elevator to the front as the elevator is moving to the next floor. In which situation is the force you must apply to move the crate the least, and in which is it the greatest: when the elevator is accelerat- ing upward, when it is accelerating downward, or when it is travel- ing at constant speed? Explain.
Qnine,ten,eleven