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Airida [17]
3 years ago
11

A force of 45 newtons is applied on an object, moving it 12 meters away in the same direction as the force. What is the magnitud

e of work done on the object by this force?
Physics
1 answer:
klio [65]3 years ago
5 0

If the applied force is in the same direction as the object's displacement, the work done on the object is:

W = Fd

W = work, F = force, d = displacement

Given values:

F = 45N

d = 12m

Plug in and solve for W:

W = 45(12)

W = 540J

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A.To determine the speed the hand must move with to break the board, the force workdone in breaking the board is found first.

Workdone = force × distance

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Therefore, the hand must move with a velocity of 6.98 m/s to break the board.

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This can be determined using the equation of motion, v² = u² + 2as to find acceleration, since force = mass × acceleration

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