A force of magnitude Fx acting in the x-direction on a 2.10-kg particle varies i

Question

A force of magnitude Fx acting in the x-direction on a 2.10-kg particle varies in time as shown in the figure below. http://www.webassign.net/sercp9/6-p-016.gif (a) Find the impulse of the force. Correct: Your answer is correct. kg

A force of magnitude Fx acting in the x-direction on a 2.10-kg particle varies in time as shown in the figure below. http://www.webassign.net/sercp9/6-p-016.gif (a) Find the impulse of the force. Correct: Your answer is correct. kg · m/s (b) Find the final velocity of the particle if it is initially at rest. Correct: Your answer is correct. m/s (c) Find the final velocity of the particle if it is initially moving along the x-axis with a velocity of -2.90 m/s. Please show all steps especially for (c)

Explanation / Answer

area under curve is impulse=12N

b)12=mv

v=5.71 m/s

c)impulse=change in momentum

12=m(2.9-v)

v=2.81

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