Question 5A

|tem5 I Review | Constants V PartA Archersh are tropical sh that hunt by shooting drops of water from their mouths at insects above , . . . . the waters surface to knock them into the water. IIi'u'hat Is the momentum of one drop of water Immediatelyr after It leaves the sh 3 mouth? where the sh can eat them. A 65 g sh at rest just at the surface of the water can expel a 0.30 g drop 4 of water in a short burst of 5.0 ms. Highspeed O 7-5 X 10 kg ' mfg measurements shoe.r that the water has a speed of 4 2.5 m/sjust after the archersh expels it. 0 1-5 X 10 kg ' mfg O 7.5X10 3159me O 1.5X1l3 31:9me R_equest Answer Provide Feed DECK Next > Item 6 On a frictionless. horizontal air table, puck A {with mass [1.250 kg] is moving toward puck B (with mass [1.355 kg], that is initially at rest. Aer the collision. puckA has a velocity of [1.112 mfg to the left, and puck B has velocity [1.660 mfg to the light. For related problemsolving tips and strategies. you may want to View a Video Tutor Solution of Collision along a straight line. Part A What was the speed of puck A before the collision? Express your answer in meters per second. \"we u : mfs R_equest Answer Part B Calculate the change in the total kinetic energy of the system that occurs during the collision. Express your answer in joules. AEd O AK = Submit Request AnswerItem 7 Review | Constants Part A When cars are equipped with flexible bumpers, they will bounce off each other during low-speed collisions, thus causing less damage. In one such What was the speed of the lighter car just after the collision? accident, a 1650 kg car traveling to the right at Express your answer in meters per second to three significant figures. 1.60 m/s collides with a 1350 kg car going to the left at 1.10 m/s. Measurements show that the heavier car's speed just after the collision was AEd ? 0.270 m/s in its original direction. You can ignore any road friction during the collision. m/s Submit Request AnswerPart B Calculate the change in the combined kinetic energy of the two-car system during this collision. Express your answer in joules to three significant figures. VO AEd ? AK = Submit Request AnswerItem 8 Part A A toy bus and a toy car collide head-on as shown in the figure below. Immediately after the collision, both toys are at rest. Given their initial speeds up = 3.0 m/s and ve = 7.0 m/s, calculate the mass of the toy bus if the mass of the toy car is 0.15 kg. Vb Vc Express your answer with the appropriate units. HA OF ? mb= Value Units Submit Request