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Tamiku [17]
3 years ago
8

5 What is the kinetic energy of a 6.00kg toy car that is going at 1.75m/s across the floor?

Physics
1 answer:
prisoha [69]3 years ago
7 0

Answer:

mass(m) = 6kg

velocity (v) = 1.75m/s

Kinetic energy (KE) = ?

We have ,

KE = 1/2 mv²

= 1/2 6*1.75

= 5.25 j

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5) Sally has a mass of 50 kg. She ran with a velocity of 20 m/s.
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Answer:

<h2>10,000 J</h2>

Explanation:

The kinetic energy of an object can be found by using the formula

k =  \frac{1}{2} m {v}^{2} \\

m is the mass

v is the velocity

From the question we have

k =  \frac{1}{2}  \times 50 \times  {20}^{2}  \\  = 25 \times 400 \\  = 10000

We have the final answer as

<h3>10,000 J</h3>

Hope this helps you

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