Ben also participated. He fell down midway, and had to walk part of the distance. Still, he finished the distance! It took him exactly 30 minutes though. Chapter Reference a What was Ben’s average speed?

0.56 m/s

Step-by-step explanation:

The average speed of a body tells how fast is the body moving; it is calculated as:

where

d is the distance covered

t is the time elapsed

In this problem, we don't know the distance covered by Ben. Therefore, we will assume that it is 1 km:

d = 1 km = 1000 m

The time elapsed to cover this distance is:

Therefore, Ben's average speed is:

10 glasses of juice could be made with 5 carrots, 1,500 orange juice, 2,000 papaya juice.

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²