Answer to Question #142391 in Mechanics | Relativity for Mikkos Joshua Garcia

Question

1. John is driving his sports car down a four-lane highway at 40m/s. He overtakes be a slow-moving dump truck. If he can accelerate at 5m/s/s, how long will it take for him to reach the speed of 60 m/s?

Note: I need a illustration about the problem situated above and also brief solution. Thank you.

Answer 1

$a=5ms^{-2}, u = 40m/s, v = 60m/s, t =?$$a= \frac{v-u}{t}$

$5= \frac{60-40}{t}$

$t= 20/5 = 4 seconds$