Question

A skateboarder starting from rest accelerates down a ramp at 2m/s^2 for 2 seconds. What is the final velocity of the skateboarder?

A. 2 m/s
B. 4 m/s
C. 8 m/s
D. 16 m/s

Answer 1

The skateboarder, starting from rest, accelerates down a ramp at 2 m/s2 for 2. The final velocity is 4 m/s making option B, 4 m/s the correct answer.

Step-by-step explanation:

This asks for the final velocity of a skateboarder who, starting from rest, accelerates down a ramp at 2 m/s2 for 2 seconds. To find the final velocity, we can use the formula v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration, and t is the time. Because the skateboarder starts from rest, the initial velocity u is 0. Therefore, the calculation is simple: v = 0 + (2 m/s2 × 2 s) = 4 m/s. Hence, the correct answer is B. 4 m/s.