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## A boat is moving at the rate of 15.0 meters per second. It’s speed is then decreased uniformly to 3.0 meters per second. It takes 4 seconds

Question

A boat is moving at the rate of 15.0 meters per second. It’s speed is then decreased uniformly to 3.0 meters per second. It takes 4 seconds for the speed to decrease. What is the magnitude of the deceleration of the car ?

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Physics
3 years
2021-08-24T02:20:09+00:00
2021-08-24T02:20:09+00:00 1 Answers
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## Answers ( )

Answer:-3 m/s²

Explanation:The formula for deceleration is given as the change in speed over a period of time

Given that,

Initial speed = 15 m/s

Final speed = 3 m/s

change in speed= 3-15= -12 m/s

Time taken= 4 sec

Deceleration = -12/4 = -3 m/s²