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andrew-mc [135]

3 years ago

11

Suppose that a block is pulled 16 meters across a floor. What amount of work is done if the force used to drag the block is 22 N

?

2 answers:

LenKa [72]3 years ago

3 0

Work done = Force * Displacement

= 22N * 16m

= 352 Nm

Work done = 352 Joules.

earnstyle [38]3 years ago

3 0

Answer:

352 J

Explanation:

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4 years ago

Driving 30.7 m/s in your car you see a dog up ahead and slam on your brakes. You stop just before hitting the dog after skidding

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Answer: 2.74

Explanation:

We can solve this problem using the stopping distance formula:

$d=\frac{(V_{o})^{2}}{2 \mu g}$

Where:

$d=132.1 m$ is the distance traveled by the car before it stops

$V_{o}=30.7 m/s$ is the car's initial velocity

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Isolating $\mu$ :

$\mu=\frac{2dg}{(V_{o})^{2}}$

Solving:

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$\mu=2.74$ This is the coefficient of friction

7 0

3 years ago

A dog runs with an initial speed of 1.5 m/s on a floor. It slides to a stop with an acceleration of -0.35 m/s^2. How long does i

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Answer:

3.214 m

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6 0

4 years ago

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Deduce the diamension of work

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Answer:

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Explanation:

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