Question

Calculate the speed (in m/s) of a skateboarder who accelerated from rest for 3 seconds down a ramp at an acceleration of 5 m/s^2.

A. 15 m/s
B. 10 m/s
C. 45 m/s
D. 5 m/s

Answer 1

The speed of the skateboarder who accelerated from rest for 3 seconds at an acceleration of 5 m/s^2 is 15 m/s.

Step-by-step explanation:

The speed of the skateboarder who accelerated from rest for 3 seconds down a ramp at an acceleration of 5 m/s2 can be calculated using the formula for acceleration:

Speed = Acceleration × Time

By plugging in the values:

Speed = 5 m/s2 × 3 s = 15 m/s

Therefore, the speed of the skateboarder after 3 seconds is 15 m/s.