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A lift is pulled up

A lift is pulled up to the top of a building by a constant force of 6400N at a constant speed of 2m/s. It takes 3mins to reach
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2. asked by Lina
3. 579 views
a) In raising a 4800 N piano with a pulley system, the workers note that for every 2 m of rope pulled down, the piano rises 0.3
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2. asked by janice
3. 1,310 views
A coin is released inside a lift at a ht of 2m from the floor of the lift. The ht of the lift is 10 m . the lift is moving with
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2. asked by shubhi
3. 929 views
A pulley system has an efficiency of 87.5%. How much rope must be pulled if a force of 648N is needed to lift a 105 kg desk
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2. asked by Mason
3. 2,606 views
A pulley system has an efficiency of 78.0 per-cent. The acceleration of gravity is 9.81 m/s2 . How much of the rope must be
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2. asked by McCaleb
3. 1,113 views
For a single movable pulley with a mechanical advantage of 2, how much rope must be pulled to lift a 150 neuton load 2 meters
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2. asked by Kayla
3. 672 views
A man of mass M kg and his son of mass m kg are standing in a lift. When the lift is accelerating upwards with magnitude 1ms-2
1. 2 answers
2. asked by The Golden Girl
3. 2,148 views
the ski lift chair at a ski report is 2560m long. on average, the ski lift rises 15.2 degree above the horizontal. how high is
1. 1 answer
2. asked by Anonymous
3. 1,011 views
Which of the following statements about high-lift devices are true?Flaps are usually only used during landing. High-lift devices
1. 1 answer
2. 44 views
What is accomplished by the simple Poli?A?It changes the total work done to lift the object.Be it changes a duration needed to
1. 1 answer
2. 51 views