Two cars with different accelerations · PhysicsBowl 2019 #33
Physics · mechanics
Problem
Two cars are being tested on a track. Car 1 accelerates from rest on this straight track at a₁ = 3.0 m/s². Two seconds later, Car 2 accelerates from rest at a₂ = 12.0 m/s². How much time after Car 1 starts will Car 2 pass Car 1?
(A) 3.0 s (B) 4.0 s (C) 5.0 s (D) 6.0 s (E) 7.0 s