1.

How long would it take a car, starting from rest and accelerating uniformly in a straight line at 5 m//s^(2), to cover a distance of 200 m ?

Answer»

9.0 s
10.5 s
12.0 s
15.5 s

Solution :USE Big Five #2 with `v_(0)=0`.
`Delta s = v_(0)t+(1)/(2)at^(2)=(1)/(2)at^(2) IMPLIES t = sqrt((2 Delta s)/(a))= sqrt((2(200 m))/(5 m//s^(2)))=9 s`


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