Q3. 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.
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- Two ice skaters push off against one another starting from a stationary position. The 45-kg skater acquires a speed of 0.375 m/s. What speed does the 60-kg skater acquire? a. 0.21 m/s b. 0.55 m/s c. 0.28 m/s d. 0.14 m/s9. A 2500 kg truck moving at 10.00 m/s strikes a car waiting at a traffic light, hooking bumpers. The two continue to move together at 7.00 m/s. What was the mass of the struck car? A. 1730 kg B. 1550 kg C. 1200 kg D. 1070 kg E. 967 kg1. Write the scalar equation for the conservation of momentum in the x-direction where Vbx is the unkwown Solve this for Vbx. 2. Write a scalar equation for the conservation of momentum in the y-direction where Vby is the unknown. Solve this for Vby. 3. Determine the vector vb. Draw the puck's path on the diagram. 4. Determine the total kinetic energy before the collision. 5. Determine the total kinetic energy after the collision. 6. What type of collision was it? Explain.
- At an amusement park, Keenan is in a 96.0 kg bumper car moving to the right at a speed of 3.50 m/s. He collides with his friends who are in a 135 kg bumper that is at rest. Keenan bounces backward at a speed of 1.25 m/s. a. What is the new velocity (magnitude and direction) of his friends? b. Calculate if kinetic energy is conserved during this collision.A. 3.850 Rg m/s D. 4.113 kg-m/s 4.823 kg-m/s B. 4.730 kg-m/s E. C. 5.476 kg-m/s F. 3.735 kg-m/s 1--1 IZJXM A toy train engine (2.1 kg) is moving 0.28 m/s to the right when it collides with a train car (3.2 kg) moving 0.19 m/s in the opposite direction, and they stick together. Find the velocity of the engine-car combination as they move off together. Assume "to the right" is the positive direction. 3. A. -0.00267 m/s D. -0.006516 m/s -0.005211 m/s B. E. -0.002181 m/s -0.003774 m/s C. F. -0.006594 m/s 1--1 [carpet-14]Jill threw a dodgeball completely horizontal in x-direction with velocity of +5 m/s and mass of .5 kg. At the same time her friend threw a dodgeball with the same mass in the -x direction and a velocity of -2 m/s. The balls hit each other, and Jill's ball was deflected 30° above the original path, while her friend's deflected 20⁰. below the initial path. a. Ignoring gravity, solve the velocity of each ball after the collision, using a free body diagram. b. If both balls had a magnitude of 3 m/s, how much kinetic energy was "lost" during the collision?
- The figure shows a distribution of several objects, in which m1 = 3.0 kg, m2 = 2.0 kg, and m3 = 1.0 kg a. What is the x-coordinate of thesystem’s center of mass?A. 1.67 mB. 1.83 mC. 2.5 mD. 2.75 mE. None of these b. What is the y-coordinate of thesystem’s center of mass?A. 1.5 mB. 1.83 mC. 2.17 mD. 2.75 mE. None of these2. A villain with mass 65.0 kg runs at a velocity of 9.26 m/s directly into Chuck Norris' fist moving at a speed of 0.150 m/s. The villain is knocked back at a velocity of 8.52 m/s and angle 20.0° from the horizontal, while Chuck Norris' fist moves at a velocity of 0.0745 m/s and 10.0° from the horizontal. a. What is the mass of Chuck Norris' fist in kg? b. How much kinetic energy is lost in the collision? Vii † Note: This is a silly problem with silly answers! 20° 10°Canon and Lucas are playing beach volleyball. Canon spikes the 240 g ball toward Lucas at 8.5 m/s. Lucas deflects the ball by hitting it with -87.5 N of impact force for a 0.006 s impact. Assuming only one dimension of motion, what is the magnitude of the velocity of the ball after it is hit by Lucas?
- Object A has a mass 4 kg and is traveling to the right at speed 6 m/s. Object B is traveling to the left at 6 m/s. The objects collide head-on, and afterward each has a speed of 6 m/s. Which of the following could be the mass of object B? Select two of the answers below A. 4 kg B. 6 kg C. Negligible compared to 4 kg D. 2 kgA miniature spring-loaded, radio-controlled gun is mounted on an air puck. The gun’s bullet has a mass of 5.00 g, and the gun and puck have a combined mass of 120 g. With the system initially at rest, the radio controlled trigger releases the bullet causing the puck and empty gun to move with a speed of 0.500 m/s. What is the bullet’s speed? a. 4.80 m/s. b. 11.5 m/s c. 48.0 m/s d. 12.0 m/s