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3 years ago

11

Plsss help

1 answer:

Ede4ka [16]3 years ago

7 0

Work = force x distance. In units, Joules = Newtons x meters.

So: Work = 50 Newtons x 3 meters

Work = 150 joules. Answer D is correct

FYI - to ace physics, you should learn to identify these values using their fundamental units:
Force = Newtons = Kg·m/s²
Work = joules = kg·m²/s²
Power = watts = kg·m²/s³

In high school physics, If you learn to arrange equations so the units work out properly for the answer, you'll get most problems correct.

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$v=21.36\,\,\frac{m}{s}\\$

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and notice that the kinetic energy can be written in terms of the linear momentum (p) as shown below:

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