9. A metric ton is 2000 kg. What is the weight of it on Earth if gravity is approximately 10 m/s?? 10. A cat is chasing a bird and traveled 20 m in 2.5 s. How fast is the cat running?
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11. You are traveling to school at a rate of 40 m/s when you see a red light and slow to a stop. If it took you 10 s to
stop, what was your acceleration?
12. The fastest runner, Hicham El Guerrouj, was clocked running at a rate 7.28 m/s for 1500 m in 1999. How long
did it take him to complete the race?