1. What acceleration
of a police car that moves at rest to 1.5 km/minute for 5.0 minutes?
2. What is the acceleration of the car moving from 150 m/s to 50 m/s in 10 s?
3. A roller coaster’s velocity at the top of
a hill is 10 m/s. 2 seconds later it reaches the
bottom of
the hill with a velocity of 26
m/s. What was the acceleration of the coaster?
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Answer:
1. 7.5 kilometers
2.
Explanation:
1. The distance can be found by multiplying the speed by the time.
The car's speed is 1.5 kilometers per minute. It is traveling for 5.0, or 5 minutes. Therefore,
Substitute the values into the formula.
Multiply. When you multiply, the minutes, or "min" will cancel each other out.
The distance the car travels is 7.5 kilometers.
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