Multiple Choice
A car moving along the x direction has acceleration,ax that varies with time as shown in the figure.At the moment,t = 0 s,the car is located at x = 12 m and has a velocity of 6 m/s in the positive x direction.What is the velocity of the car at t = 4.0 s? 
A) 16 m/s
B) 15.6 m/s
C) 14.4 m/s
D) 0 m/s
E) -12.7 m/s
Correct Answer:

Verified
Correct Answer:
Verified
Q66: The driver of a car travels 150
Q67: A car moving along the x direction
Q68: A runner of mass 61.3 kg starts
Q69: A ball is dropped from rest from
Q70: A particle moves in the one direction,stops,and
Q72: A fish takes 14 minutes to swim
Q73: A stone is dropped from a height
Q74: A rocket,speeding along toward Alpha Centauri,has an
Q75: A rocket,speeding along toward Alpha Centauri,has an
Q76: Starting from rest,a car accelerates at a