Question

While traveling along a highway a driver slows from 34 m/s to 17 m/s in 6 seconds. What is the automobiles acceleration?​

Answer 1

Answer:

-2.83 m/s²

Explanation:

• Initial velocity (u) = 34 m/s
• Final velocity (v) = 17 m/s
• Time taken (t) = 6 seconds

❖ Acceleration is defined as the rate of change in velocity with time.

→ a = (v - u)/t

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

→ a = (17 - 34)/6 m/s²

→ a = -17/6 m/s²

→ Acceleration = -2.83 m/s²

(Minus sign implies that the velocity is decreasing.)