A wolf runs towards you at 1.5 m/s. If you start running when the wolf is 25 m away from you, how fast must you run to the safety of cabin that is 100 m away?
time taken by wolf to reach the safety cabin
t = distance / speed
= (25 + 100)/ 1.5
= 83.33 seconds
Velocity needed to be safe
v = 100/ 83.33
v = 1.2 m/s
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