Question

A cheetah can maintain its top speed of 31m/s over a distance of 100 metres while some breeds of gazelle, such as thomson's gazelle have a top speed of 25m/s. This question considers how close the cheetah needs to be to catch the gazelle if they have both just reached top speed.
a. How long does it take a cheetah to cover 100m?

b. What is the closing speed of the cheetah, that is what is the difference in speed between the cheetah and the gazelle?

c. How far ahead of the cheetah would the gazelle need to be to escape? (Hint: you need the time you calculated in a and the closing speed you calculated in b.)

d. How long would it take the cheetah to catch the gazelle with the closing speed you calculated in b and the distance apart you calculated in c?

Answer 1

Answer:

d How far ahead of the cheetah would the gazelle need to be to escape? (Hint: you need the time you calculated in a and the closing speed you calculated