Answer :
t = ?
v1 = 0mph
v2 = 60mph
a = 8.7mph/s
[tex]a = \frac{v2 - v1}{t} \\ t = \frac{v2-v1}{a} \\ t = \frac{60mph - 0mph}{8.7mph/s} \\ t = 6.90s [/tex]
Therefore, it takes 6.90 seconds for Jill to accelerate from 0 to 60 miles per hour.
v1 = 0mph
v2 = 60mph
a = 8.7mph/s
[tex]a = \frac{v2 - v1}{t} \\ t = \frac{v2-v1}{a} \\ t = \frac{60mph - 0mph}{8.7mph/s} \\ t = 6.90s [/tex]
Therefore, it takes 6.90 seconds for Jill to accelerate from 0 to 60 miles per hour.