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Ymorist [56]
3 years ago
5

Is it more fun on a swing with low or high amplitude? Explain.

Physics
1 answer:
marusya05 [52]3 years ago
7 0
A pendulum is an object hung from a fixed point that swings back and forth under the action of gravity. In the example of the playground swing, the swing is supported by chains that are attached to fixed points at the top of the swing set. When the swing is raised and released, it will move freely back and forth due to the force of gravity on it. The swing continues moving back and forth without any extra outside help until friction (between the air and the swing and between the chains and the attachment points) slows it down and eventually stops it.
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What is most likely the color of the light whose second-order bright band forms an angle of 13.5° if the diffraction grating has
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the color is red.

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What is the difference between distance and displacement? Give an example of a situation where distance and displacement both ha
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When an object is travelling in a straight line and stops at the end point, then both distance and displacement are same.

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3 years ago
Example: A wooden crate with mass 100kg is at rest on a stone floor. You know that the coefficients of kinetic and static fricti
alexgriva [62]

Answer

Any force greater 490N

Explanation

The force required just to make an object slide over a rough horizontal surface is any force greater that the static friction which given by;

F=\mu_s mg.............(1)

Given;

\mu_s=0.5\\m=100kg\\g=9.8m/s^2

Hence;

F = 0.5 x 100 x 9.8

F = 490N.

We will only need the coefficient of kinetic friction if we were asked to find the force required to keep the object moving uniformly. Usually, the force needed to keep an object moving uniformly over a rough surface is lesser that which is needed to start its motion.

In this problem, we were only asked to find the minimum force required to make the object move which we have done.

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3 years ago
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