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Problems from Kinematics again!

Two bodies one held 40 m above other, are released simultaneously . After falling for 3 sec under gravity,  their relative separation is? A particle covers half the distance between two points for...

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Numerical Problems from Kinematics and Force

1.if a man in a boat rows perpendicular to the bank he is drifted 120 m during crossing river in 10 minutes . if he heads at angle of alpha from upstream he crosses river by shortest path in 12.5 min....

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Solving problems on Laws of Motion

Sir,in solving problems of laws of motion ,is it mandatory to take that direction as +ve in which acceleration acts?(i.e should i subtract other forces acting on a body from the forces that is acting...

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Pseudo force and solving problems

Sir,can we solve problem without considering pseudo forces in non inertial frame?(give an example)Continue reading...

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Which books should be referred for IIT JEE ?

We have received hundreds of questions on the above subject. As the questions continue to pour in, we found it necessary to create a post on it. IIT JEE is an entrance exam of international repute and...

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A few numerical problems from laws of motion

A worker pulls a 200. N packing crate with an applied force of 55.0 N.  The crate accelerates at a rate of 0.250  m/s(squared).  What is the coefficient of kinetic friction between the crate and the...

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