Solving Force & Momentum in Collision of 3.0kg & 4.0kg Masses

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To solve the collision problem involving a 3.0kg mass and a 4.0kg mass, the equations of motion and momentum conservation principles are essential. The final velocity of the 4.0kg mass can be calculated using the initial velocities and angles of both masses, applying vector decomposition for accurate results. The acceleration of the 3.0kg mass can be determined by analyzing the change in its velocity over the collision time. Additionally, the force acting on each mass can be found using Newton's second law, considering the calculated accelerations. Understanding these concepts is crucial for successfully solving the problem and preparing for the test.
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hey, just need help on this question. i know the answer but i need all the working out as i have a test tommorrow and don't understand how and when to use the equations of motion and change in momentum etc.

A 3.0kg mass moving at 4.0ms at 135degress collides with a 4.0kg mass moving at 2.0ms at 315 degrees. The collision occurs over 0.20s and the 3.0kg mass is measured to be moving off at 1.0ms at 135 degrees. Find:

a) the final velocity of the 4.0kg mass
b) the acceleration of the 3.0kg mass
c) The force acting on each mass.

Thanks a lot people!
 
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