Using Data on Stopping Distances: Analyzing Patterns and Drawing Conclusions

The video tutorial discusses how to present and analyze data on stopping distances. It emphasizes the use of graphs to identify patterns and trends. The tutorial provides an example of a van's stopping distance at different times of the year, comparing the effects of brake efficiency on stopping distances. It also explores how this data can inform decisions about vehicle servicing and safe travel speeds.

Why is graphical representation of data considered useful?

• It is easier to print.

• It makes data look more colorful.

• It requires less data.

• It helps in identifying patterns and trends.

What does the blue curve in the graph represent?

• Stopping distance at a speed of 30 meters per second.

• Stopping distance with a braking force of 8,000 newtons.

• Stopping distance with a braking force of 12,000 newtons.

• Stopping distance at the end of the year.

How much did the stopping distance increase over the year at 25 meters per second?

• 50 meters

• 12 meters

• 78 meters

• 34 meters

What is one practical use of the stopping distance data?

• To decide the color of the van.

• To determine how often the van should be washed.

• To decide how regularly the van needs servicing.

• To calculate the fuel efficiency of the van.

If a van must stop within 60 meters, what should be considered?

• The speed at which the van is driven.

• The color of the van.

• The type of fuel used.

• The number of passengers in the van.