I Review I Three objects A, B, and C are moving as shown in the figure below (Figure 1). Assume that vA = 12.0 m/s, VB = 9.0 m/s, and vc = 3.2 m/s. Part C Find the x-component of the net momentum of the particles if we define the system to consist of B and C. Express your answer in kilogram meters per second. ? Px = kg m/s Submit Request Answer Part D Figure 1 of 1 Find the y-component of the net momentum of the particles if we define the system to consist of B and C. Express your answer in kilogram meters per second. BA60° Πν ΑΣφ 5.0 kg 6.0 kg 10.0 kg Py = kg · m/s Submit Request Answer qucativia aɔntu Ievv Juujetto uu IUt Cuut agaat yuui qucativn count.

Constants Olaf is standing on a sheet of ice that covers the football stadium parking lot in Buffalo, New York; there is negligible friction between his feet and the ice. A friend throws Olaf a ball of mass 0.400 kg that is traveling horizontally at 11.1 m/s. Olaf's mass is 73.8 kg .(Figure 1) Part A If Olaf catches the ball, with what speed vf do Olaf and the ball move afterward? Express your answer numerically in meters per second. • View Available Hint(s) η ΑΣφ Uf = m/s Submit Figure 1 of 1 A B Part B If the ball hits Olaf and bounces off his chest horizontally at 8.20 m/s in the opposite direction, what is his speed vf after the collision? Express your answer numerically in meters per second. • View Available Hint(s) H ΑΣφ Uf = m/s

Part A A block of mass 2.55 kg slides down a 30.0° incline which is 3.60 m high. At the bottom, it strikes a block of mass 7.60 kg which is at rest on a horizontal surface. (Assume a smooth transition at the bottom of the incline.) (Figure 1) If the collision is elastic, and friction can be ignored, determine the speed of the block with mass 2.55 kg after the collision. v'm = ΕΠΙ ΑΣΦ Submit Request Answer Part B ? m/s If the collision is elastic, and friction can be ignored, determine the speed of the blockwith mass 7.60 kg after the collision. = 跖 ΑΣΦ Submit Request Answer ་ Part C How far back up the incline the smaller mass will go. ΜΕ ΑΣΦ d = Submit Request Answer ? ? m m/s

A 5-kilogram block slides at 20 m/s on a smooth frictionless surface toward a stationary sphere, shown below. The sphere is 4 times the mass of the block. The block strikes the sphere at time t-D0. A plot of the force exerted on the CUBE by the ball as a function of time is shown above right. 20 20 m 10 a) What is the impulse applied to the block? Your answer b) What is the speed of the cube immediately following the collision? (HINT: Impulse = A momentum) Your answer c) What is the velocity of the cube immediately following the collision? (State both direction and magnitude.) Your answe IN