14. 1. Calculate the acceleration of a moving car whose speed changes from 7 m/s to 12 m/s during 2.5 sec. ​

Question

14.
1. Calculate the acceleration of a moving car whose speed changes from 7 m/s to 12 m/s
during 2.5 sec.
​

in progress 0
Gerda 4 years 2021-07-30T23:58:16+00:00 2 Answers 10 views 0

Answers ( )

  1. minhkhue
    0
    2021-07-30T23:59:23+00:00
    Reply

    Acceleration (magnitude) = (change in speed) / (time for the change)

    Change in speed = (end speed) – (start speed)

    Change in speed = (12 m/s) – (7 m/s)

    Change in speed = 5 m/s

    Acceleration = (5 m/s) / (2.5 s)

    Acceleration = 2 m/s²

  2. Nick
    0
    2021-07-30T23:59:24+00:00
    Reply

    Answer:

    acceleration=change in distance÷change in time

    Explanation:

    Acceleration=change in distance ÷change in time

    A=12÷2.5

    A=4.8 m/sec

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