Number : 1
A
car travels 100 km. The journey takes two hours. The highest speed of the car
is 80 km/h, and the lowest speed is 40 km/h. What is the average speed for the
journey ? in km/h.
A. 40
B. 50
C. 60
D. 120
Number : 2
A
ball rolls down a ramp. The time takes to move from X to y is measured. Which other
quantity must be measured in order to calculate the average speed of the ball
between...
