The Impulse-Momentum Theorem Learning Goal: To learn about the impulse-momentum

Question

The Impulse-Momentum Theorem Learning Goal: To learn about the impulse-momentum theorem and its applications in some common cases. Using the concept of momentum. Newton's second law can be rewritten as where is the net force F net acting on the object. and is the rate at which the object's momentum is changing. If the object is observed during an interval of time between times t1 and t2, then integration of both sides of equation (1) gives Part H If the magnitude of the net force acting on the particle is F, how long does it take the particle to acquire its final velocity, 2v in the positive y direction? Express your answer in terms of m, F, and v. If you use a numerical coefficient, use three significant figures. So far, we have considered only the situation in which the magnitude of the net force acting on the particle was either irrelevant to the solution or was considered constant. Let us now consider an example of a varying force acting on a particle. Part I A particle of mass m = 5.00 kilograms is at rest at t = 0.00 seconds. A varying force F(t) = 6.00t^2 - 4.00t + 3.00 is acting on the particle between t = 0.00 seconds and t = 5.00 seconds. Find the speed y of the particle at t 5.00 seconds. Express your answer in meters per second to three significant figures.

Explanation / Answer

a= F/m

v= u + at

2v = (F/m) t

t = 2vm /F        ..... ans 1

ans 2     43

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