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FrozenT [24]
3 years ago
14

A track athlete does two and a half laps from the starting line on a track of normal shape and size. The best way to describe th

e difference between the athlete's distance versus displacement is
Physics
1 answer:
aniked [119]3 years ago
5 0

Answer:

The displacement and the distance were equal early in the run, however due to the shape of the track the distance is greater than the displacement.

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A contestant in a winter games event pulls a 36.0 kg block of ice across a frozen lake with a rope over his shoulder as shown in
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(a) The minimum force F he must exert to get the block moving is 38.9 N.

(b) The acceleration of the block is 0.79 m/s².

<h3>Minimum force to be applied </h3>

The minimum force F he must exert to get the block moving is calculated as follows;

Fcosθ = μ(s)Fₙ

Fcosθ = μ(s)mg

where;

  • μ(s) is coefficient of static friction
  • m is mass of the block
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F = [0.1(36)(9.8)] / [(cos(25)]

F = 38.9 N

<h3>Acceleration of the block</h3>

F(net) = 38.9 - (0.03 x 36 x 9.8) = 28.32

a = F(net)/m

a = 28.32/36

a = 0.79 m/s²

Thus, the minimum force F he must exert to get the block moving is 38.9 N.

The acceleration of the block is 0.79 m/s².

Learn more about minimum force here: brainly.com/question/14353320

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2 years ago
When testing a home for radon, where is the most likely place for the highest detected level? A) the basement, due to ground see
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A

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An ultrasonic tape measure uses frequencies above 20 MHz todetermine dimensions of structures such as buildings. It does so byem
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a) 1m

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which symbol in the first law of thermpdynamics represents energy that moves from a hot object to a cooler object?
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The triangle <span>in the first law of thermodynamics, represents energy that moves from a hot object to a cooler object.</span>
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Use absolute dating in a sentence
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