Question

a student is driving along at 14 m/s; he hits the gas and accelerates at 2.3 m/s^2 for 7 s. How far does he move in this time?

Answer 1

150 m

Step-by-step explanation:

Given:

u = 14 m/s

a = 2.3 m/s²

t = 7 s

Find: s

s = ut + ½ at²

s = (14) (7) + ½ (2.3) (7)²

s = 154 m

Rounded to two significant figures, the student moves 150 meters.