A car accelerates at 2 meters/s/s. Assuming the car starts from rest how far will it travel in 10 seconds

Question

A car accelerates at 2 meters/s/s. Assuming the car starts from rest how far will it travel in 10 seconds

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MichaelMet 5 years 2021-07-15T15:11:16+00:00 2 Answers 337 views 0

Answers ( )

  1. thuthao
    1
    2021-07-15T15:12:46+00:00
    Reply

    Answer:

    100 m

    Explanation:

    Given,

    Initial velocity ( u ) = 0 m/s

    Acceleration ( a ) = 2 m/s^2

    Time ( t ) = 10 sec s

    To find : Displacement ( s ) = ?

    By 2nd equation of motion,

    s = ut + at^2 / 2

    = ( 0 ) ( 10 ) + ( 2 ) ( 10 )^2 / 2

    = 0 + ( 2 ) ( 100 ) / 2

    = 200 / 2

    s = 100 m

  2. quangkhai
    0
    2021-07-15T15:13:07+00:00
    Reply

    Answer:

    Distance = velocity x time, so 10 m/s X 10 s = 100 m

    Explanation:

    If you accelerate at 2 m/s^2 for 10 seconds, at the end of the 10 seconds you are moving at a rate of 20 m/s.

    V(f) = V(i) + a*t

    Final velocity = initial velocity + acceleration x time

    Your average velocity will be half of your final, because you accelerated at a constant rate. So your average velocity is 10 m/s.

    Distance = velocity x time, so 10 m/s X 10 s = 100 m

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