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STALIN [3.7K]
3 years ago
11

You're using a wedge to split a log. you are hitting the wedge with a large hammer to drive it into the log. it takes a force of

1900 n to push the wedge into the wood. if the wedge moves 0.23 m into the log, how much work have you done on the wedge?
Physics
2 answers:
KIM [24]3 years ago
6 0
The work performed on an object is the force multiplied by the distance it is moved, provided the movement is parallel to the force.  Since that is the case here, we can get the work by W=Fd=1900N x 0.23m = 437J.  This energy is used to split the wood.
RoseWind [281]3 years ago
5 0

Answer: 437 J

Work done can be defined as the product of force and displacement. It is the work required to move an object to certain distance using a certain force.

work=force\times displacement

It is given that:

Force=1900 N

Displacement=0.23 m

Then, work=1900N\times 0.23m = 437 N-m=437J

Hence, the work done on the wedge to drive it into log is 437 J


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When the displacement of a mass on a spring is 12 a the half of the amplitude, what fraction of the mechanical energy is kinetic
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You know that when the displacement is equal to the amplitude (A), the velocity is zero, which implies that the kinetic energy (KE) is zeero, so the total mechanical energy (ME) is the potential energy (PE).

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ME = PE = [1/2] k (A)^2.

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3 years ago
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Show that the motion of a mass attached to the end of a spring is SHM

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According to Newton's 2nd law of motion, force 'F' produces acceleration 'a' in the body which is given by

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Comparing equation (1) & (2)

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3 years ago
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Answer:

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