(a) An elevator of mass m moving upward has twoforces acting on it: the upward force of tension in the cableand the downward force due to gravity. When the elevator is accelerating upward, which is greater, T or w? (b) When theelevator is moving at a constant velocity upward, which isgreater, T or w? (c) When the elevator is moving upward, butthe acceleration is downward, which is greater, T or w? (d) Letthe elevator have a mass of 1 500 kg and an upward accelerationof 2.5 m/s2. Find T. Is your answer consistent with theanswer to part (a)? (e) The elevator of part (d) now moveswith a constant upward velocity of 10 m/s. Find T. Is youranswer consistent with your answer to part (b)? (f) Havinginitially moved upward with a constant velocity, the elevatorbegins to accelerate downward at 1.50 m/s2. Find T. Is youranswer consistent with your answer to part (c)?
(a) An elevator of mass m moving upward has two
forces acting on it: the upward force of tension in the cable
and the downward force due to gravity. When the elevator is accelerating upward, which is greater, T or w? (b) When the
elevator is moving at a constant velocity upward, which is
greater, T or w? (c) When the elevator is moving upward, but
the acceleration is downward, which is greater, T or w? (d) Let
the elevator have a mass of 1 500 kg and an upward acceleration
of 2.5 m/s2. Find T. Is your answer consistent with the
answer to part (a)? (e) The elevator of part (d) now moves
with a constant upward velocity of 10 m/s. Find T. Is your
answer consistent with your answer to part (b)? (f) Having
initially moved upward with a constant velocity, the elevator
begins to accelerate downward at 1.50 m/s2. Find T. Is your
answer consistent with your answer to part (c)?
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