A horizontal force of 10 N is required to maintain a velocity of 2 ms on a box of mass 20 kg over a plane surface how which work is done by force in 1 min.
Answers
Answer:
Explanation:
A velocity of 2m/s is maintained for one minute, so total distance traveled during that time is
60 (seconds) * 2 (m/s) = 120 metres.
The work done is therefore
120 (meters) * 10 N = 1200 Newton-metres or 1200 joules or 1.2 kj.
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Answer:
1200 Newton-metres or 1200 joules or 1.2 kj.
Explanation:
Work is defined as energy expended in a resultant force component acting on an object in the same direction as its motion over a given distance.
Since the question describes a horizontal force and a plane surface, we assume the direction of movement is completely aligned with direction of force applied.
A velocity of 2m/s is maintained for one minute, so total distance traveled during that time is
60 (seconds) * 2 (m/s) = 120 metres.
The work done is therefore
120 (meters) * 10 N = 1200 Newton-metres or 1200 joules or 1.2 kj.