Question

A truck starts from rest at a traffic light. It takes 60.0 s to reach a speed of 29.0 m/s. What is the magnitude of the truck's acceleration during this time interval?

A) 9.80 m/s²
B) 0
C) 29.0 m/s²
D) 0.483 m/s²
E) 2.07 m/s²

Answer 1

The magnitude of the truck's acceleration as it goes from rest to 29.0 m/s in 60.0 s is 0.483 m/s², answer choice D.

Step-by-step explanation:

The question centers on calculating the acceleration of a truck that starts from rest and reaches a certain speed over a given time. To find the acceleration, we can use the formula a = Δv / Δt, where Δv is the change in velocity and Δt is the change in time. Here, the truck starts at 0 m/s and reaches 29.0 m/s in 60.0 seconds.Substituting the given values we have: a = (29.0 m/s - 0 m/s) / 60.0 s = 29.0 m/s / 60.0 s = 0.483 m/s².The correct answer is D) 0.483 m/s², which is the magnitude of the truck's acceleration during the 60.0 s time interval.