A car advertisement states that a car can accelerate at 2 m/sec. The car starts from rest and accelerates to 70 km/hr. How much time does it take to accelerate to 70 km/hr.

9.72s

Explanation:

Here we need to find out the time that the car took to achieve the velocity of 70km/hr after starting from rest . Firstly convert the final velocity in m/s by multiplying it by 5/18 , as ,

Plug in the respective values ,

Simplify ,

Cross multiply ,

Simplify

the answer is b ) square root of 5

answer(20) psi;