Question

jill's car has a maximum acceleration of 8.7 miles per hour per second. how many seconds does it take her to acceleration from 0 to 60 miles per hour

Answer 1

T = ?
v1 = 0mph
v2 = 60mph
a = 8.7mph/s

$a = \frac{v2 - v1}{t} \\ t = \frac{v2-v1}{a} \\ t = \frac{60mph - 0mph}{8.7mph/s} \\ t = 6.90s$

Therefore, it takes 6.90 seconds for Jill to accelerate from 0 to 60 miles per hour.