victorchuku victorchuku

07-07-2020
Physics

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A body starting from rest moves with uniform acceleration until it attains a speed of 100m/s after 20 s. It maintained this speed for the next 30s and came to rest by uniformly deceleration in 30s. (a.) Find its acceleration.

Respuesta :

osikbro osikbro

07-07-2020

Answer:

5m/s^2

Explanation:

[tex]v_f=v_o+at[/tex]

Since it started from rest:

[tex]100m/s=a(20s) \\\\a=5m/s^2[/tex]

Hope this helps!

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