Question

A car moving along a straight line at 20 m/s undergoes an acceleration of 1.5 m/s. After four seconds its speed will be:
(A) 7 m/s
(B) 13 m/s
(C) 26 m/s
(D) 14 m/s
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Answer 1

Answer:

(c) 26m/s

Explanation:

V = u + at

V = 20 + 1.5×4

V = 20 + 6

v = 26m/s

Answer 2

Answer: 26 m/s

Explanation:

v=u+at

v=20+(1.5×4)

v=20+6

v=26 m/s