650 identify and set up use eq615 to relate the power

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Unformatted text preview: 6.50. IDENTIFY and SET UP: Use Eq.(6.15) to relate the power provided and the amount of work done against gravity in 16.0 s. The work done against gravity depends on the total weight which depends on the number of passengers. EXECUTE: Find the total mass that can be lifted: so This is the total mass of elevator plus passengers. The mass of the passengers is The number of passengers is 28 passengers can ride. EVALUATE: Typical elevator capacities are about half this, in order to have a margin of safety. 6.63. IDENTIFY: The effective force constant is defined by , where F is the force applied to each end of the spring combination and x is the amount the spring combination is stretched. SET...
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