A cheetah can run at a maximum speed 103 km/h and a gazelle can run at a maximum speed of 76.5 km/h. If both animals are running at full speed, with the gazelle 99.3 m ahead, how long before the cheetah catches its prey? Answer in units of s.

Part 2: The cheetah can maintain its maximum speed for only 7.5 s. What is the minimum distance the gazelle must be ahead of the cheetah to have a chance of escape? (After 7.5 s the speed of cheetah is less than that of the gazelle.)

Answer in units of m.

1

2

 The distance is      

Explanation:

From the question we are told that

   The maximum speed of the cheetah is  

    The maximum of  gazelle is  

     The distance ahead is

Let   denote the time which the cheetah catches the gazelle

Gnerally the equation representing the distance the cheetah needs to move in order to catch the gazelle is

=>          

=>          

=>        

Now at t =  7.5 s  

=>          

=>          

=>                

Hence the for the gazelle to escape the cheetah it must be 55.2 m

yup its correct its: c) b b

i think they are all correct

explanation:

they seem good