A car accelerates from rest at 2 m/s2. What is its speed 3 s after the car starts moving?
A)2 m/s
B)3 m/s
C)4 m/s
D)6 m/s
E)none of the above

Question

Quizplus · Accepted Answer

The speed of the car after 3 seconds can be calculated using the formula for acceleration: $v = u + at$, where $v$ is the final velocity, $u$ is the initial velocity (0 m/s since the car starts from rest), $a$ is the acceleration (2 m/s$^2$), and $t$ is the time (3 s). Plugging in the values, we get $v = 0 + (2 \times 3) = 6$ m/s.

A Car Accelerates from Rest at 2 M/s2