490 - Physics Questions Answers

How can the wheel and platform stay stationary since the center of mass cant move without external force?
Asked By: LUFFY
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Joshi sir comment
Can you find the ans numerically 
Asked By: LUFFY
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Two balls A and B are simultaneously released on two frictionless inclined planes from the position shown. The inclined planes have equal inclinations. The balls pass through a particular horizontal level 12s and 4s after they were released. How long after they were released will they be closest to each other?

Asked By: MUDIT
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Question in based on a figure, yet it is not provided. 

Please update it for getting the solution.

Thanks

 

Asked By: AKASH MAURYA
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Asked By: SHIVANSHU KUMAR
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 A projectile is fired with velocity u at entrance A of a horizontal tunnel of length L and height H. The minimum value of u for which projectile will reach the other end of the tunnel without touching the top of the tunnel is 

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Derive the expression or show that:Path independence of line integral of electrostatic field,, conservative nature of electrostatic force.

Asked By: SANJAY
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See the clip

Asked By: SRIKANTA SAHA
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Solve  iit sir please
Asked By: KUNDAN RAI
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Concept of pseudo force

Asked By: SIRAJ KUMAR
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Joshi sir comment

Will get the video soon

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