1. [-/16.66 Points] DETAILS SERPSE10 9.1.OP.001. MY NOTES ASK YOUR TEACHER PRACTICE ANOT A particle with kinetic energy equal to 227 J has a momentum of magnitude 23.4 kg . m/s. Calculate the speed (in m/s) and the mass (in kg) of the particle. speed m/s mass kg Need Help? Read It 2. [-/16.66 Points] DETAILS SERPSE10 9.3.OP.009. MY NOTES ASK YOUR TEACHER PRACTICE ANOT A 0.0600 kg ball is traveling horizontally at 21.0 m/s when it is hit by a badminton racquet. The ball then moves in the opposite direction, also horizontally, at a speed of 37.0 m/s. Take the initial velocity of the ball to be in the -x-direction. (a) What is the impulse delivered to the ball by the badminton racquet? (Give the x-component in N . s. Indicate the direction with the sign of your answer.) iN . S (b) Some work is done on the system of the ball and some energy appears in the ball as an increase in internal energy during the collision between the ball and the racket. What is the quantity W - Aint for the ball? (Give your answer in J.) Need Help? Read It Watch It 3. [-/16.66 Points] DETAILS SERPSE10 9.4.OP.011. MY NOTES ASK YOUR TEACHER PRACTICE ANOT A 10.10-g bullet is fired into a stationary block of wood having mass m = 4.960 kg. The bullet imbeds into the block. The speed of the bullet-plus-wood combination immediately after the collision is 0.6030 m/s. What was the original speed of the bullet? (Express your answer with four significant figures.) 4.9. m/s4. [-/16.66 Points] DETAILS SERPSE10 9.5.OP.018. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER As shown in the figure, a wooden ball with mass m, is initially at rest on a horizontal, frictionless table. A second wooden ball with mass m, moving with a speed 2.00 m/s, collides with m2 . Assume m, moves initially along the +x-axis. After the collision, m, moves with speed 1.00 m/s at an angle of e = 50.0 to the positive x-axis. (Assume m, = 0.200 kg and m2 = 0.300 kg.) After the collision My sin e Before the collision if cos e Vi Ugf COS O Why sin o mg Vof b (a) Determine the speed (in m/s) of the 0.300 kg ball after the collision. m/s (b) Find the fraction of kinetic energy transferred away or transformed to other forms of energy in the collision. LAKI Need Help? Read It 5. [-/16.66 Points] DETAILS SERPSE10 9.6.OP.023. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Four objects are situated along the y axis as follows: a 1.99-kg object is at +3.08 m, a 3.03-kg object is at +2.51 m, a 2.41-kg object is at the origin, and a 4.03-kg object is at -0.490 m. Where is the center of mass of these objects? X = m