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An escalator is moving downward

An escalator is moving downward with a uniform speed of u. A man of mass m is running upward on it at a uniform speed of v. If
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2. asked by Dawn
3. 1,649 views
A person walk up a stalled escalator in 90sec.when standing on the same escalator now moving,he is carried in 60 sec.the time he
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2. asked by aisha
3. 754 views
A person walks up a stalled 15 m long escalator in 110 s. When standing on the same escalator, now moving, the person is carried
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2. asked by Anonymous
3. 623 views
An escalator is 15.0 m long. If a person stands on the escalator, it takes 38.0 s to ride from the bottom to the top.(a) If a
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2. asked by Kelly
3. 1,166 views
A person walks up a stalled 20 m long escalator in 79 s. When standing on the same escalator, now moving, the person is carried
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2. asked by winterWX
3. 650 views
An escalator in a department store is driven by a large electric motor whose power consumption changes with the load to keep the
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2. asked by cal
3. 604 views
An escalator in a department store is driven by a large electric motor whose power consumption changes with the load to keep the
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2. asked by micky
3. 1,197 views
walking down a long moving escalator, phil covered the 75 m distance in 25 s. walking back up against the motion of the
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2. asked by jodie
3. 1,454 views
Walking down a long moving escalator, Phil covered 75 m in distance in 25 seconds. Walking back up against the motion of the
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2. asked by Allison
3. 689 views
The world's longest escalator is in the subway system of St. Petersburg, Russia. The escalator has a vertical rise of 195 ft. 6
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2. 84 views