Asked by Luis

A car entering the freeway accelerates from 10.2 m/s with a constant acceleration of 4.4 m/s2. What is the car’s final velocity when it merges onto the highway and reaches its cruising speed 4.2 seconds later?
A

28.7 m/s
B

11.2 m/s
C

18.5 m/s
D

8.28 m/s

Answers

Answered by Elena
v=v₀+at = 10.5+(4.4•4.2) = 28.98 m/s
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