Sphere A of mass 0.9 kg travels with an initial velocity vA =11 m/s as shown and strikes the 2.8-kg sphere B which travels with a velocity VB =6 m/s. If the coefficient of restitution is 0.4, determine the speed of sphere B after impact. Give your answer in m/s. VA VB A B
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- Two solld, unlform dlsks are placed on a fiiclionless lable. Disk 1 has a 4. radius of R and is initially at rest. Disk 2 has a radius of 3/2 R and is initially moving with at speed of vo. Disk 2 makes a glancing collision with Disk 1, and the disks stick together. The disks are made of the same material. R2=3/2 R a. What is the center of mass speed for the combined Disk 1, Disk 2 system after the collision? Express your answer in terms of vo. R,=R Before After b. Find the angular velocity of the combined Disk 1, Disk 2 system after the collision. Express your answer in terms of R and Vo.A 0.46-kg skeet (clay target) is fired at an angle of 28° to the horizon with a speed of 25 m/s. When it reaches the maximum height, h, it is hit from below by a 22-g pellet traveling vertically upward at a speed of 230 m/s. The pellet is embedded in the skeet. Skeet v0 = 28° Part A h' = = 25 m/s How much higher, h', did the skeet go up? Express your answer to twoe significant figures and include the appropriate units. Submit Part B Ax = Skeet ☐ HÅ Value v=230 m/s Pellet Request Answer μÀ How much extra distance, Ax, does the skeet travel because of the collision? Express your answer to two significant figures and include the appropriate units. Value Units Submit Request Answer www ? P Units ?Three particles are placed in the xy plane. A 30-g particle is located at (3, 4) m, and a 40-g particle is located at (-2, -2) m. Where must a 20-g particle be placed so that the center of mass of the three-particle system is at the origin? p q# 4 p. 242 chap 7 O(-3,-1) m O(+1, +3) m O(+3, -1) m O (-0.5, -2) m O(-1, -3) m
- An 8.00 g bullet is fired into a 210 g block that is initially at rest at the edge of a table of 1.00 m height. The bullet remains in the block, and after the impact the block lands d = bottom of the table. Determine the initial speed of the bullet. 2.0 m from the m/s 8.00 g 1.00 m Need Help? Read Itquestion C6. A 0.030-kg bullet is fired vertically into a 0.15-kg metal sphere that is initially at rest. If the bullet's velocity is at 200-m/s just prior to contacting the sphere and it is embedded within the sphere, how high up will the bullet/sphere rise relative to the initial location of the sphere? Answer: 57 m
- A 200 kg cannon rests on a smooth surface. It fires a 10 kg cannonball in horizontal direction. The cannonball moves with a velocity of 200 m/s measured relative to the cannon right after the firing. Determine the speed of the cannon after the fire.I need handwritten only otherwise I'll dislike6. Two smooth disks A and B (masses 0.8 and 0.6 kg, respectively) move with velocities as pictured and collide in such a way that the coefficient of restitution is 0.75. Determine the velocities of each disk just after the collision. B (VB)1 = 4 m/s (VA)1 = 6 m/s A -X
- 4 p An explosion breaks an object, originally at rest, into two fragments. Fragment 1 has mass mi and acquires twice the kinetic energy of fragment 2 with mass m2. What is the ratio of their masses? (A) m1/m2 = } %3D (B) m1/m2 = } (C) m1/m2 = } (D) mı/m2 = 1 (E) m1/m2 = 2 (F) m1/m2 = 3 G) m1/m2 = 4A space vehicle is traveling at 3840 km/h relative to Earth when the exhausted rocket motor is disengaged and sent backward. The relative speed between the motor and the command module is then 94 km/h. The mass of the motor is four times the mass of the module. What is the speed of the command module relative to Earth just after the separation? Number i UnitsA proton, moving with a velocity of vi, collides elastically with another proton that is initially at rest. If the speed of the initially moving proton is 2.30 times the speed of the initially at rest proton, find the following. (a) the speed of each proton after the collision in terms of vi initially moving proton initially at rest proton Need Help? (b) the direction of the velocity vectors after the collision initially moving proton initially at rest proton Submit Answer x Vi Read It X V relative to the +x direction relative to the +x direction D