Walker, Halliday & Resnick — Center of Mass and Linear Momentum: Problem 68

68 In Fig. 9-59, block 1 of mass \(m_1\) slides from rest along a frictionless ramp from height \(h = 3.00 \text{ m}\) and then collides with stationary block 2, which has mass \(m_2 = 2.00m_1\). After the collision, block 2 slides into a region where the coefficient of kinetic friction \(\mu_k\) is \(0.450\) and comes to a stop in distance \(d\) within that region. What is the value of distance \(d\) if the collision is (a) elastic and (b) completely inelastic?