3 years ago

A bicyclist is in a 50-km race. She says she had an average velocity of 35.

Physics

1 answer:

zlopas [31]3 years ago

8 0

The correct answer to this is (A. Units Only).

It shows that there is a velocity of 35, but the units are missing.

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2. A 55 kg woman has a momentum of 200 kg m/s. What is her velocity?

NeTakaya

Answer:

$\boxed {\tt 3.63636364 \ m/s}$

Explanation:

Velocity can be found using the following formula:

$v=\frac{p}{m}$

where p is the momentum and m is the mass.

The woman has a mass of 55 kilograms and a momentum of 200 kilogram meters per second.

$p= 200 \ kgm/s\\m=55 \ kg$

Substitute the values into the formula.

$v=\frac{200 \ kg m/s}{55 \ kg}$

Divide. Note that the kilograms, or kg, will cancel each other out.

$v=\frac{200 \ m/s}{55}$

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The woman's velocity is 3.63636364 meters per second.

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