Answers
The car's forward motion is opposed by the friction between the road and the tires and by the resistance of the air.
Answer:
The acceleration is about 9.8 m/s2 (down) when the ball is falling.
Explanation:
The ball at maximum height has velocity zero
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration due to gravity = 9.8 m/s² (positive downward and negative upward)

The accleration 9.8 m/s² will always be acting on the body in opposite direction when the body is going up and in the same direction when the body is going down. The acceleration on the body will never be zero
Answer:
I. don't. get. this. question
C. Demand increases
Pace increases
Mass/volume is the formulae
Speed= distance/time
Speed= 150000m/7200s=20.83m/s(cor.to.2d.p.)