Question

A car is speeding up and has an instantaneous speed of 14.0 m/s when a stopwatch reads 9.0 s. It has a constant acceleration of 2.3 m/s2
(b) What is the speed when the stopwatch reads 12.2 s?

Answer 1

V = Vo + at,
V = 14 + 2.3(12.2-9) = 21.36m/s