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12 shortcuts in physics mechanics - pulleys

physics.fisikastudycenter.com - 12 short-cut formulas for physics problems in mechanics with frictionless pulleys cases. These methods commonly used in multiple choices test or examination types not in an essay test type. Take a note that we have to be in exactly the same case with the each provided formula conditions to avoid any mistakes, if we don't, just leave it.

Formula 1
Frictionless floor, frictionless pulley (the masses of string and pulley are ignored), finding the acceleration of m1 and m2



Formula 2
Frictionless pulley, m1 > m2 , m1 moves down, m2 moves up, the acceleration:




Formula 3
A block in frictionless incline surface, without pulley



 


Formula 4
Frictionless floor surface, frictionless pulley (ignoring the masses of string and pulley), m1 moves down, m2 moves to the left.




Formula 5
Frictionless floor surface, frictionless pulley (ignoring the masses of string and pulley), m1 moves down, m2 moves up.





Formula 6
Frictionless floor surface, frictionless pulley (ignoring the masses of string and pulley), m1 moves down, m2 moves up.





Formula 7
Frictionless floor surface, frictionless pulley (ignoring the masses of string and pulley), m1 moves down, m2 moves to the right.





Formula 8
Frictionless floor surface, frictionless pulley (ignoring the masses of string and pulley), m1 and m2 move to the right.







Formula 9
Frictionless floor surface, frictionless pulley (ignoring the masses of string and pulley), m1 moves down, m2 moves to the right.





Formula 10
Frictionless floor surface, frictionless pulley (ignoring the masses of string and pulley), m1 to the right, m2 to the left.







Formula 11
Frictionless floor surface, frictionless pulley (ignoring the masses of string and pulley), m1 moves down, m2 moves up.





Formula 12
Frictionless floor surface, frictionless pulley (ignoring the masses of string and pulley), m1 moves down, m2 moves up.





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