Question

A person riding north on a bicycle speeds up from 0 m/s to 9 m/s in 3 seconds. The acceleration of the bicycle is m/s2.

Answer 1

Explanation:

accekeration =(9-0)÷3=3 m/sec square

Answer 2

Answer:

$v = u + at \\ 9 = 0 + a \times 3 \\ 9 = 3a \\ a = 9 \div 3 \\ a = 3m \div {s}^{2}$