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A child kicks a stone along the sidewalk with a force of 520 newtons. The stone travels 1.5 meters in 0.30 seconds. How powerful is the child's kick?

2,600 W
1,700 W
47 W
1.5 W

Answer :

991224
the answer should be 2,600 W .
skyluke89

Answer:

2,600 W

Explanation:

The power can be expressed as the product between the force applied and the velocity of the object:

[tex]P=Fv[/tex]

where F is the force applied and v is the velocity.

We already know the force, F=520 N, while we can find the velocity of the stone by dividing the distance covered by the time taken:

[tex]v=\frac{d}{t}=\frac{1.5 m}{0.3 s}=5 m/s[/tex]

So now we can use the first equation to find the power:

[tex]P=(520 N)(5 m/s)=2600 W[/tex]

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