Author Question: Ten seconds after starting from rest, a car is moving at 40 m/s. What is the car's acceleration? ... (Read 85 times)

mydiamond · **on:** Jul 29, 2018

Ten seconds after starting from rest, a car is moving at 40 m/s. What is the car's acceleration?

A) 0.25 m/s2
B) 2.8 m/s2
C) 4.0 m/s2
D) 10 m/s2
E) 40 m/s2

Question 2

If a rocket initially at rest accelerates at a rate of 50 m/s2 for one minute, its speed will be

A) 50 m/s.
B) 500 m/s.
C) 3000 m/s.
D) 3600 m/s.