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Thanks for watching, hope the exam went OK

You're very welcome, thanks for watching :-)

OK thanks for the feedback, much appreciated

Sorry for the slow reply. I cover all aspects of the unit 1 course but have only uploaded videos as and when needed. This video covers a problem I would expect to see in the mechanical principles section.

No problem 👍

have you finished your exam?

hope the videos helped and the exam went ok

@@hassaankhan3294 yes I have I am sure I did pretty good on it at least got half marks

@@MathsPhysicsEngineering Your videos helped alot thanks

Glad it was helpful :-)

Glad the videos are helpful 👍

Hope the videos help, best of luck

Glad it was helpful :-)

Thanks very much :-)

Hope it was helpful, thanks for watching 👍

Thank you and thanks for watching 👍

Thanks, glad the video was helpful and thanks for watching. For your question: Without knowing the magnitudes of the velocities, we can't know the exact direction of the acceleration vector unless we at least know the relative magnitudes of the two velocities. If the two velocities are of the same magnitude, then the acceleration vector will actually point south west (one way to visualise this is the following: we start with velocity going north, so to make it go west we have to decelerate down to zero in the north direction (i.e. accelerate south) and then accelerate west. Hope that helps :-)

@@MathsPhysicsEngineering Ohh ok. Thank you!

Thanks for watching the video. A negative sign is not needed for the 7x9.81 calculation as the weight arrow tells us the direction of the force (notice the negative sign for this downward force is included in front of the W when we work out the resultant force). However, when, in the video, I said "calculate the weight" what I should have said is "calculate the magnitude of the weight" (for magnitude the answer is always positive). You're correct about the gravity being a negative acceleration, I could have written the resultant force calculation as T-W or as T+(m x -9.81), both give the same result. Hope that helps, please feel free to ask if anything isn't clear.