Question

on a 900m long straight race track,A and B, starts from rest and moves with a constant acceleration 1m/s^2 and 2m/s^2 respectively (a) find the time difference with which car B wins the race (b) when car B finishes the race, what is the distance between the car​

Answer 1

Answer:

900 = 1/2.a t2

tA = 30(√2)

tB = 30

time difference is 30(√2-1)

s=1/2.1.900

= 450

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