PSYCH211 Lecture Notes - Lecture 8: Net Force, Putty
26 Jul 2018
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Object 1 has a mass m1 and a velocity v 1 = (2. 00m/s )x^. Object 2 has a mass m2 and a velocity v 2= (3. 20m/s )y^. The total momentum of these two objects has a magnitude of. 15. 0kg m/s and points in a direction 68. 0 above the positive x axis: find m1, find m2. Two ice skaters stand at rest in the center of an ice rink. A 92-kg astronaut and a 1000-kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving it a speed of 0. 22m/s directly away from the shuttle. A 0. 450-kg block of wood hangs from the ceiling by a string, and a 7. 30 10 (cid:1006)-kg wad of putty is thrown straight upward, striking the bottom of the block with a speed of 5. 65m/s . A 0. 500-kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 25. 0n/m .
