Question

A radio-controlled toy car increases speed over a distance of 15.2 m. if the car starts at rest and has a final speed of 0.76 m/s, what is the magnitude of its acceleration? Which equation would you use to solve this problem?

Answer 1

0.019 m/s²

Step-by-step explanation:

Given:

s = 15.2 m

u = 0 m/s

v = 0.76 m/s

Find: a

Since time is unknown and not the variable we're looking for, we need to use an equation independent of time.

v² = u² + 2as

Substitute and solve:

(0.76)² = (0)² + 2a (15.2)

a = 0.019 m/s²