Answer:
It will take 4 seconds for cheetah to catch up
Explanation:
Speed of cheetah= S1=90ft/s
Speed of the prey=S2=60ft/s
Distance between the cheetah and prey = d=120ft
Hence forming a linear equation,
Using the formula
Relative Speed= [tex]\frac{Distance}{time}[/tex]
Relative[tex]Speed\times time[/tex]= Distance
Therefore,
Suppose t is the time
[tex](S1-S2)\times t= d[/tex]
Putting the values
(90-60)t=120
t=[tex]\frac{120}{30}[/tex]
t=4 seconds
Hence it will take 4 seconds for cheetah to catch up
