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At the instant a traffic light turns green, a carstarts moving with a constant a

ID: 1750527 • Letter: A

Question

At the instant a traffic light turns green, a carstarts moving with a constant acceleration a of 2.46m/s2. At the same instant a truck,traveling with a constant speed of 11.43 m/s,overtakes and passes the car. How far beyond the traffic light willthe car overtake the truck?
1.06×102 m What will be the speed of the car at thatinstant? At the instant a traffic light turns green, a carstarts moving with a constant acceleration a of 2.46m/s2. At the same instant a truck,traveling with a constant speed of 11.43 m/s,overtakes and passes the car. How far beyond the traffic light willthe car overtake the truck?
1.06×102 m What will be the speed of the car at thatinstant?

Explanation / Answer

speed of the car at that instant=a*t= a*2v/a=2v=2*11.43=22.86m/sec

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