Usain Bolt's Speed and Records

The video tutorial discusses Usain Bolt's world records in the 100m dash, focusing on his 2008 and 2009 performances. The teacher explains the significance of these records and guides students through the process of converting Bolt's speed from meters per second to kilometers per hour. The tutorial emphasizes understanding speed in different units and provides a step-by-step calculation to help students grasp the concept.

What is the world record time Usain Bolt set for the 100m dash?

• 10.31 seconds

• 8.70 seconds

• 9.69 seconds

• 9.58 seconds

In which year did Usain Bolt set his previous 100m record before 2009?

• 2012

• 2010

• 2008

• 2009

Where were the 2008 Olympics held, where Bolt set a previous record?

• London

• Berlin

• Beijing

• Manchester

How do you calculate speed from time and distance?

• Add time and distance

• Divide distance by time

• Subtract time from distance

• Multiply time by distance

What is the speed of Usain Bolt in meters per second for his 9.69-second run?

• 8.70 m/s

• 37.15 m/s

• 9.58 m/s

• 10.31 m/s

How many seconds are there in an hour?

• 3,600

• 1,000

• 60

• 3,000

What is the final step to convert meters per hour to kilometers per hour?

• Subtract 1,000

• Add 1,000

• Divide by 1,000

• Multiply by 1,000

What was Usain Bolt's speed in kilometers per hour for his 9.69-second run?

• 8.70 km/h

• 9.58 km/h

• 37.15 km/h

• 10.31 km/h

What was Usain Bolt's record time with a running start?

• 9.69 seconds

• 9.58 seconds

• 8.70 seconds

• 10.31 seconds

In which city did Bolt achieve a faster time with a running start?

• Berlin

• Manchester

• London

• Beijing