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2 years ago

A car travels 300km in six hour. What is the average speed

Physics

1 answer:

KiRa [710]2 years ago

5 0

Answer:

Explanation:

The average speed of the car can be found by using the formula

$s = \frac{d}{t} \\$

d is the distance

t is the time taken

From the question we have

$s = \frac{300}{6} = 50 \\$

We have the final answer as

Hope this helps you

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2 years ago

A racquetball strikes a wall with a speed of 30 m/s and rebounds in the opposite direction with a speed of 26 m/s. The collision

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Answer:

The average acceleration of the ball during the collision with the wall is $a=2,800m/s^{2}$

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<u>Known Data</u>

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<u>final momentum</u>

$p_{f}=mv_{f}=(26m/s)(m_{b})=26m_{b}\ m/s$

<u>Impulse</u>

$I=\Delta p=p_{f}-p_{i}=26m_{b}\ m/s-(-30m_{b}\ m/s)=56m_{b}\ m/s$

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