if a cheetah spots his prey at a distance of 100m what is minimum time it will take to get its prey if the average velocity attained by it is 90km/h.
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Answer:
s= 100m= 0.1km
u= 0km/h
v= 90km/h
t=?
Firstly, by third equation of motion
v2-u2=2as
8100=0.2a
8100/0.2=a
Substituting value of a in equation 1st of motion
v=u+at
90=0+8100/0.2xt
90=8100/0.2t
90/8100/0.2=t
1/450=t
Hence cheetah will take 1/450 seconds to catch its prey...
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umasenthil6677:
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