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 ?

in progress 0
3 years 2021-08-24T02:20:09+00:00 1 Answers 6 views 0

Answers ( )

    0
    2021-08-24T02:21:23+00:00

    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

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )