State the section of the graph (A, B, C, or D) where the car is moving the slowest. Explain your answer.
b) Calculate the average speed of the car over the whole journey.
100 points and brainliest

D 15m/s

Explanation:

1)you find the speed covered in all the points e.g on speed=distance covered

time taken

a)300m\15s=20m/s

b)rest no distance covered

c)(1000-300)=700m time=(60-35)=25. 700m/25s=28m/s

d)(1200-1000)=300m time=(80-60)=20s

200m/20s=10m/s

thus the lowest speed was 10m/s at D

Average speed=average distance

average time

=1200m/80s. =15m/s

the force required to move the cart is divided by three or 33.33 n.

the bal will not change its velocity.