efreamyohannes efreamyohannes

01-01-2024
Physics

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6. A train accelerates from rest with an acceleration of 4 m/s2 for a time of 20 s. What is the train’s speed at the end of 20 s? (A) 0.25 m/s (B) 4 m/s (C) 2.5 m/s (D) 0.8 m/s (E) 80 m/s

Respuesta :

begnayeyisybbo7 begnayeyisybbo7

01-01-2024

Answer:

E

Explanation:

acceleration=change in velocity/change in time

So v=at =4×20=80

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