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- The Hulk (200 kg of pure angry muscle) collides head-on with a truck (2,500 kg). If the Hulk was running at 10.0 m/s and the truck was moving at 15.0 m/s in the opposite direction, after they stick together, what is their speed (in m/s)? (Hint: be careful about directions here, either the Hulk or the truck needs a negative initial velocity, I’ve left it up to you which one gets that negative initial velocity, but the final answer is just the speed, so if you wind up with a negative final velocity, drop the minus sign)Suppose a clay model of a koala bear has a mass of 0.240 kg and slides on ice at a speed of 0.745 m/s. It runs into another clay model, which is initially motionless and has a mass of 0.310 kg. Both being soft clay, they naturally stick together. What is their final velocity (in m/s)? (Enter the magnitude.)Calculate the final velocity right after a 116 kg rugby player who is initially running at 7.85 m/s collides head‑on with a padded goalpost and experiences a backward force of 17700 for 5.50×10^−2 s. what is the final velocity in m/s?
- Knowledge Check: Manned Satellites You have scored 0 out of 1. 1. Two manned satellites approach one another at a relative speed of 0.29 m/s, intending to dock. The first has a mass of 4.0x 10³ kg, and the second a mass of 7.5×10³ kg. If the two satellites collide elastically rather than dock, what is their final relative velocity? Final relative velocity = 0.25 X m/s ! No, that's not the correct answer. Try Again View Forum Activities (0 new of 0) Belore Next in your personalized learning path Recommended because you appear to need more help with Knowledge Check: Manned Satellites net F 0 System of interest P: + P₂ Pu V₁ Frictionless surface Or try these You have 2 attempt(s) remaining to improve your score. Before answering again, you can try the recommended activity below or ask your Instructor a question. V₂ More About: Elastic Collisions Truly elastic collisions can only be achieved with subatomic particles, such as electrons striking nuclei. Macroscopic collisions can be very…(B) 15 kg m/s (E) 64 kg m/s (C) -15 kg m/s Before After v/8 m M M v/2 3. A bullet with mass m passes through a block of mass 4m sitting initially at rest on a smooth surface as shown above. The bullet has a velocity v before it enters the block and exits the block with a velocity v/2. If the block moves with a velocity v/8 after the bullet passes, how much kinetic energy is dissipated in this event? (A) 0, the kinetic energy is conserved. mv? (D) 4. (B) тy? mv² (C) mv? (E) *AP and Advanced Placement Progras are regied crademarks of the College E does not endorse, this product.4) Two boxes are on a frictionless work surface that is 5m off the ground. The second mass on the right is double the mass of the box on the left. The box on the left has an initial speed of 10 m/s and has an elastic collision with the second box. How far does the second box travel to the right of the work surface (the horizontal distance from the right edge) before hitting the ground?
- Question 3: There is an air hockey table in the treehouse! Find the x and y components of the final velocities for both 0.2 [kg] pucks after they collide. e=0.8 B 36 45 Initial Va= 2 m/s Initial Vb= 3 m/sA train engine’s mass is 22500 kg and is moving at 25 m/sec, and hits an empty train car with a mass of 7500 kg. What velocity would the empty train car have after impact? (no friction in this system, of course)lease answer the following question(s): 1. Two manned satellites approach one another at a relative speed of 0.29 m/s, intending to dock. The first has a mass of 4.0x 10³ kg, and the second a mass of 7.5x10³ kg. If the two satellites collide elastically rather than dock, what is their final relative velocity? Final relative velocity = ✔m/s Submit Answer see other options - If you don't want to answer the question right now View Forum Activities (0 new of 0) Powered by CogBooks ▬▬ Search fs 10 Answering the question(s) helps us recommend your next activity. f6 99+
- 44 (a) During an ice skating performance, an initially motionless 80.0-kg clown throws a fake barbell away. The clown's ice skates allow her to recoil frictionlessly. If the clown recoils with a velocity of 0.500 m/s and the barbell is thrown with a velocity of 10.0 m/s, what is the mass of the barbell? (4.00 kg) (b) How much kinetic energy is gained by this maneuver? (210 J) (c) Where does the kinetic energy come from? (The clown's muscles)Please Help!The figure shows two 21.6 kg ice sleds that are placed a short distance apart, one directly behind the other. A 3.99 kg cat initially standing on one sled jumps to the other one and then back to the first. Both jumps are made at a speed of 3.07 m/s relative to the ice. What are the final speeds of (a) the first sled and (b) the other sled? (a) Number (b) Number i Units Units SD