Question

A car with a velocity of 22 m/s is accelerated uniformly at the rate of 2 m/s2 for 7s. What is its final velocity?

Answer 1

Step-by-step explanation:

This is a classic acceleration problem in one dimension. Use the equation

`a=(v_f-v_0)/(t)` where a is the acceleration of he car, vf is the final velocity (and our unknown), v0 is the initial velocity, and t is time in seconds. Filling in:

`2=(v_f-22)/(7)` and

14 = vf - 22 and

36 = vf (not quite right with the sig dig's but I'm guessing you're not really into the specifics much, judging by the acceleration and the time values)