Question

Question 1: A skateboarder is traveling at 2 m/s when she reaches a downwardincline and accelerates at 3 m/s/s for 4 seconds. What speed is she traveling atthe end of those 4 seconds?O 14 m/s6 m/sI do not know how to solve this question.24 m/sO 10 m/s

Answer 1

Given:

The initial velocity of the skateboarder is

`v_i=\text{ 2 m/s}`

The acceleration is

`a=\text{ 3 m/s}^2`

The time taken is t = 4 s

Required: The final speed of the skateboarder.

Explanation:

The final velocity can be calculated by the formula,

`v_f=v_i+at`

On substituting the values, the final velocity will be

`\begin{gathered} v_f=2+(3*4) \\ =14\text{ m/s} \end{gathered}`

Final Answer: The final velocity of the skateboarder after 4 s is 14 m/s.