# Problem 8-86 Inelastic collision - Part 3B - B

A large ball of modeling clay (mass 4.5x102 g) is rolled on a tabletop so that it collides with a stationary small wooden box (mass 7.9x102 g). The collision is completely inelastic, and the ball and box then slide on the table for a distance of 5.1 cm. If the speed of the ball is 2.2 m/s just before the collision, determine: (a) the speed of the ball and box just after the collision (b) the magnitude of the friction force acting on the ball and box.

Accumulated Solution

$m_1v_1 + m_2v_2 = (m_1 + m_2)v' \quad \; \text{where}\; v_2 = 0 \\ v{'} = 0.80\; m/s\; \text{ (answer to part (a))}$

No. We don't know the time.

Try again.