Car B is initially stationary and is struck by car Amoving with initial speed v1 = 20 mi

Chapter 3, Problem 3/201

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Car B is initially stationary and is struck by car A moving with initial speed \(v_{1}=20 \mathrm{\ mi} / \mathrm{hr}\). The cars become entangled and move together with speed \(v^{\prime}\) after the collision. If the time duration of the collision is 0.1 sec, determine (a) the common final speed \(v^{\prime}\), (b) the average acceleration of each car during the collision, and (c) the magnitude R of the average force exerted by each car on the other car during the impact. All brakes are released during the collision.