A 64.0 kg man, standing on a frictionless walkalator inclined at =33.0° below the horizontal, holds a 18.9 kg grocery cart. The walkalator moves a at constant speed while it carries the cart through a height of 12.8 m from the higher floor to the lower floor of a mall. If the man applied a force that is parallel to the walkalator, how much power is delivered by the man on the cart if it reaches the lower floor after 21.8 s?

Physics for Scientists and Engineers, Technology Update (No access codes included)
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Author:Raymond A. Serway, John W. Jewett
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Chapter7: Energy Of A System
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Problem 7.3OQ: A worker pushes a wheelbarrow with a horizontal force of 50 N on level ground over a distance of 5.0...
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A 64.0 kg man, standing on a frictionless walkalator inclined at =33.0° below the horizontal, holds a 18.9 kg grocery cart. The walkalator moves a at constant speed while it carries the cart through a height of 12.8 m from the higher floor to the lower floor of a mall. If the man applied a force that is parallel to the walkalator, how much power is delivered by the man on the cart if it reaches the lower floor after 21.8 s?
A 64.0 kg man, standing on a frictionless walkalator
inclined at 0=33.0° below the horizontal, holds a 18.9 kg
grocery cart. The walkalator moves a at constant speed
while it carries the cart through a height of 12.8 m from
the higher floor to the lower floor of a mall. If the man
applied a force that is parallel to the walkalator, how much
power is delivered by the man on the cart if it reaches the
lower floor after 21.8 s?
h
91.2 W
477 W
59.2 W
109 W
Transcribed Image Text:A 64.0 kg man, standing on a frictionless walkalator inclined at 0=33.0° below the horizontal, holds a 18.9 kg grocery cart. The walkalator moves a at constant speed while it carries the cart through a height of 12.8 m from the higher floor to the lower floor of a mall. If the man applied a force that is parallel to the walkalator, how much power is delivered by the man on the cart if it reaches the lower floor after 21.8 s? h 91.2 W 477 W 59.2 W 109 W
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