Question

a car is traveling south for 250 meters over the course of 100 seconds. what was the cars average velocity?
a) 0.4 m/s south b) 0.4 m/s
c) 2.5 m/s d) 2.5 m/s south
question 4 (1 point)
an object accelerates at a rate of 1.2 m/s² w for 2.0 s and has an initial velocity of 5.0 m/s e. what is its final velocity?
(a) 1.4 m/s e (b) 2.6 m/s e
(c) 6.2 m/s w (d) 7.4 m/s w

Explanation:

Step1: Recall the velocity formula

Velocity \(v=\frac{\Delta x}{\Delta t}\), where \(\Delta x = 250\space m\) (displacement) and \(\Delta t=100\space s\) (time).

Step2: Calculate the magnitude of velocity

\(v=\frac{250}{100}=2.5\space m/s\).

Step3: Determine the direction

Since the car is traveling south, the velocity has a direction of south.

Answer:

d) \(2.5\space m/s\) south