Answer to Question #96458 in Mechanics | Relativity for Angie

Question

A car is moving at 19.5m/s [E] as it approaches a stop sign. If the driver accelerates at 1.50m/s squared [W] to come to a stop, how far from the stop sign should he be braking ? Please help a homie out y’all

Answer 1

We can use the formula:

$$v_f^2-v_i^2=2as$$

$$0^2-19.5^2=2(-1.5)s$$

$$s=127\ m$$