Answer to Question #119707 in Physics for Courtney Shippelt

Question

How long will it take Brian to increase his velocity from 5.0 m/s to 9.0 m/s if his rate of acceleration is 0.35 m/s 2

Answer 1

We can find the time needed to increase Brian's velocity from 5.0 m/s to 9.0 m/s from the kinematic equation:

$$v = v_0 + at,$$ $$t = \dfrac{v - v_0}{a} = \dfrac{9.0 \ \dfrac{m}{s} - 5.0 \ \dfrac{m}{s}}{0.35 \ \dfrac{m}{s^2}} = 11.43 \ s.$$

Answer:

$t = 11.43 \ s.$