Ball 1 with a mass of 0.75kg and moving with a velocity of v1 = 1.2i – 3.4j m/s 2 with a mass of 2.4kg and moving with a velocity of v2 = 0.58j m/s. Assume is elastic. Calculate the total momentum before the collision

Physics for Scientists and Engineers, Technology Update (No access codes included)
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Chapter9: Linear Momentum And Collisions
Section: Chapter Questions
Problem 9.4OQ: A 2-kg object moving to the right with a speed of 4 m/s makes a head-on, elastic collision with a...
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6 Ball 1 with a mass of 0.75kg and moving with a velocity of v1 = 1.2î – 3.4j m/s, strikes Ball
2 with a mass of 2.4kg and moving with a velocity of v2 = 0.58j m/s. Assume the collision
is elastic.
a. Calculate the total momentum before the collision
b. Calculate the velocity of Ball 1 after the collision. (you have to do this in the x and y
directions separately.)
c. Calculate the velocity of Ball 2 after the collision.
OANSWERS
1 a. same; b. same; c. same; d. bug;
2 502N
3 a. ON s; b. 33.2N·s Į;
4 a. 43.6m/s; b. 25.8m/s;
5 a. 6.26m/s; b. 3.00î – 6.26j m/s; c. 225î – 470j N-s; d. 225Î N-s; e. 2.59î m/s;
6 a. 0.900î – 1.16j N-s; b. –0.629î + 2.66j m/s; c. 0.571î – :
1.32j m/s;
Transcribed Image Text:6 Ball 1 with a mass of 0.75kg and moving with a velocity of v1 = 1.2î – 3.4j m/s, strikes Ball 2 with a mass of 2.4kg and moving with a velocity of v2 = 0.58j m/s. Assume the collision is elastic. a. Calculate the total momentum before the collision b. Calculate the velocity of Ball 1 after the collision. (you have to do this in the x and y directions separately.) c. Calculate the velocity of Ball 2 after the collision. OANSWERS 1 a. same; b. same; c. same; d. bug; 2 502N 3 a. ON s; b. 33.2N·s Į; 4 a. 43.6m/s; b. 25.8m/s; 5 a. 6.26m/s; b. 3.00î – 6.26j m/s; c. 225î – 470j N-s; d. 225Î N-s; e. 2.59î m/s; 6 a. 0.900î – 1.16j N-s; b. –0.629î + 2.66j m/s; c. 0.571î – : 1.32j m/s;
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