A 3kg mass with an initial velocity of (6)m/s collides with and sticks to a Skg mass with an initial velocity of(-2)m/s. The final velocity (in s) of the composite mass is Select one: 4.5î -0.53 a. Ob. 2.25î -1.25 OC. C. Sî – 0.333 2i –1.5j
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- 2. A 6.2 kg object heading north at 3.0 m/s collides with an 8.0 kg object heading west at 3.5 m/s. If these two masses stick together upon collision, what is their velocity after collision?A 8 kg ball is moving forward at 7 m/s and it runs into a second ball with mass 5 kg also moving forward at 5 m/s. After the collision the 8 kg ball is moving at 2 m/s, what is the velocity of the 5 kg ball?145. A 2.0-kilogram cart moving due east at 6.0 meters per second collides with a 3.0-kilogram cart moving due west. The carts stick together and come to rest after the collision. Calculate the initial speed of the 3.0-kilogram cart.
- 1. A car with a mass of 1000 kg moves at 20 m/s. What average braking force is needed to bring the car to a halt in 10 seconds? 2. Calculate the momentum of the Titanic (m = 50000000 kg) moving at 7 m/s.32. Two oxygen molecules in air are moving toward a head-on collision against each other. Before collision molecule A is moving to the right with a velocity of 200 m/s and molecule B is moving to the I eft with a velocity of 1300 m/s. Find the velocity of B after collision if A bounces back with velocity of 1300 m/s. a. 100 m/s b. 150 m/s c. 200 m/s d. 250 m/s a dd and e
- q7111.01 Elem x O Course Home penvellum.ecollege.com/course.html?cou 258302&HeplD=fc40f7be012937edeef713dc4972732c#10001 Provide Feedback P Pearson Copyright © 2020 Pearson Education Inc. All rights reserved. Terms of Usel Privacy Policy I PermissionsI Contact Us | 8:00 AM (? 图画 10/14/20203. A ball of mass 25 g traveling east at 12 m/s bounces elastically into a 2nd ball of mass 50 that is traveling west at 4m/s. What are the final velocities and momentum of each ball? (Hint: either solve the systems of equations for momentum and energy simultaneously or come up with a relative velocity system..) Place ball 2 in a moving reference frame so that it's velocity is 0 in this reference frame. In this reference frame ball 1 has 16 m/s initial velocity. Find the final velocities in this moving reference frame. m2 V10 m1 + m2 2m1 m1 v'1F v'2F V10 m1 + m2 Don't forget to come back out of the moving reference frame at the end... (since we added velocities before this time we subtract...
- select the statements which is true for momentum. choose all that apply. A. Momentum is the product of mass and velocity. That means object with huge mass is at rest has no momentum at all. B. Momentum is only conserved in collisions C. Momentum is a vector quanity. D. Momentum is always conserved.9. A 0.25- kg arow with a velocity of 15 m/s to the east strikes pierces the bull's – eye of a 7.0- kg target. What is the final velocity of the combined mass?Modern Physics Item 4