Question

A car accelerates from rest at 6.6 m/s^2. How much time does it need to attain a speed of 7 m/s?

Answer 1

Step-by-step explanation:

Here,

• initial velocity(u)=0m/s
• final velocity (v)=7m/s
• acceleration (a)=6.6m/s²
• time(t)=?

Using Formula;

v = u + at

or, 7 = 0 + (6.6*t)

or, 7 = 6.6t

or 7/6.6 = t

or, t = 1.06s

I think it will help you....