Question

Different land creatures have different land speeds in world. The world's fastest man, Jamaican sprinter Usain Bolt has a top time of 9.58 seconds for a track of 100m. The 11 year old cheetah named Sarah ran the same distance in 5.95 s. In 2009, she ran it in 6.13 s. Cheetahs reached a top speed of 98.17 km/h while chasing a furry dog toy on a course that was certified by the Road Running Technical Council of USA Track and Field. Cheetahs are an endangered species, with an estimated population of between 9,000 and 12,000 remaining worldwide.

12.1. What is the acceleration of Usain Bolt?

Answer 1

Answer:

9.5 meters per second squared

Explanation:

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Answer 2

0.97g

Explanation:

In the paragraph, we are given:

• Bolt accelerated off the starting blocks at 9.5 metres per second squared—nearly 0.97 g,
• the acceleration attributed to Earth's gravity—and was churning out an astounding 2.6 kWh of energy (3.5 hp) less than 1 second later, according to race statistics.
• given these facts, we can say that the acceleration of Usain bolt was 9.5 meters per second squared, or 0.97 g