When there is motion is both directions, state which direction is positive at the START of the problem.  For the impulse-momentum and the conservation of momentum problems: Plug your GIVEN VALUES into the equation FIRST then do the algebra. Use the following equations: F t = m vf -m vi  m1 vi1 + m2 vi2 = m1 vf1 + m2 vf2 m1 vi1 + m2 vi2 = (m1 + m2) vf (m1 + m2) Vi = m1 vf1 + m2 vf2 5. ) A mass of 10.00 kg is rolling across a frictionless surface at 6.00 m/s to the right. The first mass strikes a 5.00 kg mass that is initally at rest. After the collision the larger mass object is traveling at 2.00 m/s to the left.  a. ) what is the velocity and dirction of travel for the lighter mass object? Show conversions step by step, if any.

College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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When there is motion is both directions, state which direction is positive at the START of the problem. 

For the impulse-momentum and the conservation of momentum problems: Plug your GIVEN VALUES into the equation FIRST then do the algebra. Use the following equations:

F t = m vf -m vi 

m1 vi1 + m2 vi2 = mvf1 + mvf2

m1 vi1 + m2 vi2 = (m+ m2) vf

(m1 + m2) Vi = m1 vf1 + m2 vf2

5. ) A mass of 10.00 kg is rolling across a frictionless surface at 6.00 m/s to the right. The first mass strikes a 5.00 kg mass that is initally at rest. After the collision the larger mass object is traveling at 2.00 m/s to the left. 

a. ) what is the velocity and dirction of travel for the lighter mass object?

Show conversions step by step, if any. 

Expert Solution
Step 1

(5) The motion in right direction is taken as positive and to the left is taken as negative.

Physics homework question answer, step 1, image 1

Step 2

Use the equation

Physics homework question answer, step 2, image 1

Solve for the velocity of the lighter mass by using equation (1) is

Physics homework question answer, step 2, image 2

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