Author Question: A 2000-kg car experiences a braking force of 10,000 N and skids to a stop in 6 seconds. The speed of ... (Read 31 times)

jparksx · **on:** Jul 29, 2018

A 2000-kg car experiences a braking force of 10,000 N and skids to a stop in 6 seconds. The speed of the car just before the brakes were applied was

A) 1.2 m/s.
B) 15 m/s.
C) 30 m/s.
D) 45 m/s.
E) none of the above

Question 2

A 1000-kg automobile enters a freeway on-ramp at 20 m/s and accelerates uniformly up to 40 m/s in a time of 10 seconds. How far does the automobile travel during that time?

A) 100 m
B) 200 m
C) 300 m
D) 400 m
E) none of the above