Question

If a golf ball starts with a speed of 2.0 meters per second and slows at a constant rate of 0.50 meters per second squared what is its velocity after 2.0 seconds ?

Answer 1

Answer:1 m/s

Step-by-step explanation:

Acceleration is defined as the change in velocity/change in time.

Δv/Δt=a

We can rearrange this equation to get Final Velocity = Initial Velocity + Acceleration * time

In this problem, we are given

initial velocity of 2.0 m/s

Acceleration of -0.5 m/s^2 this is negative because of the slowing down

and a time of 2.0 seconds

Now we plug in

Final velocity = 2.0m/s + (-.5 m/s^2)*2.0 s)

Final Velocity = 2.0 m/s + -1 m/s

Final Velocity= 1m/s

Hope this helps