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8090 [49]
2 years ago
15

A carpenter lifts a 10-kg piece of wood to his shoulder 1.5 m above the ground. He then sets the wood on his truck at 1.0 m abov

e the ground and makes his delivery going 10 m/s. The kinetic energy of the wood during delivery is _____ J
Physics
1 answer:
FinnZ [79.3K]2 years ago
8 0

Answer:

<em>500Joules</em>

Explanation:

Kinetic energy = 1/2mv²

m is the mass of the wood

v is the velocity

Given

Mass = 10kg

Velocity v = 10m/s

Substitute into the formula and get KE

KE = 1/2 * 10 * 10²

KE  = 1/2 * 1000

KE = 500Joules

<em>Hence the kinetic energy of the wood during delivery is 500Joules</em>

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Answer:

Option A is correct.

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5 0
3 years ago
A boy pulls his 9.0 kg sled, applying a horizontal force of 14.0 N (rightward). The coefficient of friction between the snow and
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Which is the BEST example of the kind of mechanics that are studied in sports biometrics?
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Answer:

-A.

Explanation:

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5 0
2 years ago
How does the north pole of a magnet respond to the poles of other magnets?
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Answer:

Explanation:

A magnet has a magnetic field around it which originates at the north pole and enters through the south pole.

In a magnet, like poles will repel each other and unlike poles will attract.

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3 years ago
Read 2 more answers
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