13-15 | Kinetics of a Particle | Chapter 13: Hibbeler Dynamics 14th ed | Engineers Academy

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Chapter 13: Kinetics of a Particle : Force and Acceleration
Hibbeler Dynamics 14th ed

13–15. The motor lifts the 50-kg crate with an acceleration of 6 m/s2. Determine the components of force reaction and the couple moment at the fixed support A.

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[Jasonvoobhggg]

I think that if the beam is at equilibrium, the reaction forces of the pulley B are the tension force components...Moreover, in 6:30 you considered two tension forces acting on the y direction which does not make sense. The tension is one, you should've taken it downward according to the force of gravity ...tho

[TriThom]

Please start doing Meriam and Kraige solutions. I’m begging you lol.

[blesspama]

I learned from our prof that if the given is in upward direction, we must consider it negative.
Question: Why in this problem you consider 6 m/s^2 as positive?

[jahangirzahur]

Hello, why is Tension T upwards till 3:51 seconds of the video, but when you draw the diagram of the pulley, Tension T is downwards? Please reply soon

[HashemAljifri]

At 6:40 why did you take 2 tension forces whereas there is 1 cable?