Recent content by cracktheegg

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    How Do I Solve This Spring Differentiation Problem in Physics?

    Homework Statement Differentiation question on physics spring https://sg.answers.yahoo.com/question/index?qid=20140819111550AAvmAjH Homework Equations The Attempt at a Solution https://www.icloud.com/photostream/#AEGY8gBYGdYO6S;2B1E78BF-9378-47B0-B87C-BD50541B4EE7 Why I...
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    Can anyone check my working on the friction upcoming test question

    It seem that the ski question answer may be wrong according to the result i get, any clue why?
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    Can anyone check my working on the friction upcoming test question

    Homework Statement Question 1 Which statement is true of the coefficient of static friction? Answer It is the force resisting motion. It is proportional to the static friction force. It is a dimensionless quantity expressing the ratio of limiting friction to normal reaction...
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    Anyone can check whether my answer is correct regarding friction?

    I thinking the block at rest mean the slope is not high enough to make it move. Therefore I can only conclude that the static friction is equivalent to friction force
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    Anyone can check whether my answer is correct regarding friction?

    1. The ratio of limiting friction to the normal reaction is known as Answer a)angle of friction. b)angle of repose. c)coefficient of static friction. d)coefficient of kinetic friction. Question 2 When a block is at rest on...
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    Can anyone help me check my free body diagram for mobile crane

    Okay Ty, now I just worry about wether should I include the wheel. Because my classmate said the wheel should be in contact with ground, there are no outrigger or hydraulic, it is just stabilizer
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    Can anyone help me check my free body diagram for mobile crane

    haruspex, can you tell me which are the force going the opposite way? I need to learn from my mistake. so please guide me thanks
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    Can anyone help me check my free body diagram for mobile crane

    Homework Statement https://www.icloud.com/photostream/#AE5oqs3qHTNWQ;B21C49F3-02FB-4EA3-8CE5-D1E2C1FA7C49 Homework Equations The Attempt at a Solution https://www.icloud.com/photostream/#AE5oqs3qHTNWQ;A55D9431-FD6D-4884-9AFC-C4D7C8E39AF1
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    What Angle Does Force F Make Relative to AD in Physics Problem Solving?

    What angle does AD make to the slope? 35? So what then is the angle F makes to AD? 20?
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    What Angle Does Force F Make Relative to AD in Physics Problem Solving?

    thanks, T T but I really can't understand the force of roller what is the angle i should use?and the distance?
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    What Angle Does Force F Make Relative to AD in Physics Problem Solving?

    My moment equilibrium equation Take A as moment: 5cos20(6)-5cos70(1)+2(cos20*8) - Fsin15(0.53) +F cos15 (0.55)=0 sin20*1.6=0.55 cos 2-*1.6=0.53
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