The graph in the figure shows the x component of the acceleration of a 2 .1 kg o

Question

The graph in the figure shows the x component of the acceleration of a 2 .1 kg object as a function of time (in ms). At what time(s) does the x component of the net force on the object reach its maximum magnitude, and what is that maximum magnitude? What is the x component of the net force on the object at time t 0 0 ms and at t = 4.0 ms? Two objects are connected by a very light flexible string as shown in the figure, where M = 0.60 kg and m 0.40 kg. You can ignore friction and the mass of the pulley.

Explanation / Answer

a_) maximun magnitude of net force reach at t=3ms

and force =ma =2.4*20=48 N

b) 1.)

     t=0ms

     net force =ma =2.4*5=12N

2.)

     t=4ms

     net force =ma =2.4*(-10)=-24N

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