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
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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