Question

- Suppose you increase your running speed from 7 m/s to 9 m/s in a period of 2 s. What is

your acceleration?

Answer 1

Explanation:

• Initial velocity (u) = 7 m/s
• Final velocity (v) = 9 m/s
• Time taken (t) = 2s

`\dashrightarrow \quad \rm {a = (v -u)/(t) } \\`

• a denotes acceleration
• v denotes final velocity
• u denotes initial velocity
• t denotes time

`\dashrightarrow \quad \rm {a = (9 -7)/(2) \; m \: s^(-2)} \\`

`\dashrightarrow \quad \rm {a = (2)/(2) \; m \: s^(-2)} \\`

`\dashrightarrow \quad \underline{\boxed{\bf {a = 1 \; m \: s^(-2)}}} \\` (Answer)