Explanation Given: The work done is 5,000 J to raise a 102 kg crate to a shelf in a warehouse. Formula used: The work done by force( F ) to raise an object to height( h ) is w = F h cos θ Here, w is the work F is force h is height And θ is the angle between the force and distance Calculation: The crate lifts by the force which is opposing the gravitational force on it. So, the magnitude of force to lift a crate is equal to the gravitation force on it. Therefore, lifting force is calculated by F = m g Here, m is mass, and g is gravity acceleration Put the numerical values, F = 102 kg × 9.8 m s 2 F = 999

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ISBN: 9781260411393

Author: Tillery

Publisher: MCG COURSE

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Height of shelf on which a crate is raised.

Solution Summary: The author explains how a crate lifts by force, which is equal to the gravitational force on it. The angle in lifting force and height of shelf is zero.

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