3. A curling stone travelling at 5.0 m/s collides with a stationary stone of the same mass. Following the collision, the two stones travel at angles of 170 and 38 in opposite directions with respect to the initial motion of the first stone. (a) Draw a diagram of the stones' motion. (b) Calculate the speed of each stone after the collision (K:2, 1:2, A:2, C:2) 4. A mass m was fired with a velocity of v. collided with a wooden block with mass M that was initially at rest. If the mass m ended up embedded in the wooden block, derive an expression for the final height of the system in terms of the parameters: m , v., M (K:2, 1:2, A:2, C:2) M -Mtm