A 1.5-kg block is moving to the right at 1.0 m/s just before itstrikes and sticks to a 0.9-kg block initially at rest. What is thetotal momentum of the two blocks after the collision?
magnitude: kg Â· m/s
direction: _

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Hubert KochLv2

20 Feb 2019

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A 3-kg object moving to the right on a frictionless, horizontal surface with a speed of 2 m/s collides head-on and sticks to a 2-kg object that is initially moving to the left with a speed of 4 m/s. After the collision, which statement is true? (a) The kinetic energy of the system is 20 J. (b) The momentum of the system is 14 kg m/s. (c) The kinetic energy of the system is greater than 5 J but less than 20 J. (d) The momentum of the system is –2 kg m/s. (e) The momentum of the system is less than the momentum of the system before the collision.

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