Felipe drives his car at a velocity of 28 m/s. He applies the brake, which slows the vehicle down at a rate of 6.4 m/s2 and causes it to slo

Question

Felipe drives his car at a velocity of 28 m/s. He applies the brake, which slows the vehicle down at a rate of 6.4 m/s2 and causes it to slow to a stop. How long does it take for the car to stop? Round your answer to the nearest tenth.

in progress 0
Thái Dương 3 years 2021-07-25T12:53:28+00:00 1 Answers 2 views 0

Answers ( )

  1. thienthanh
    0
    2021-07-25T12:54:55+00:00
    Reply

    Answer:

    Explanation:

    Use the one-dimensional equation

    v_f=v_0+at where v is the final velocity, v0 is the initial velocity, a is the acceleration, and t is the time it takes to reach that final velocity. We are solving for t. Filling in the other values:

    0 = 28 + (-6.4)t and

    -28 = -6.4t so

    t = 4.4 seconds

Leave an answer

Browse

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