Question

In the given arrangement pulley and string are massless and frictionless and all surfaces are smooth. Find the magnitude of wedge of mass M:

• A. $\frac { F \cos \phi } { M }$
• B. $\frac { F ( 1 - \cos \phi ) } { M }$
• C. $\frac { \mathrm { F } } { \mathrm { m } + \mathrm { M } }$
• D. $\frac { F \cos \phi } { ( m + M ) }$

Answer 1

Answer: (B)

$\frac { F ( 1 - \cos \phi ) } { M }$

Answer 2

F – F cosf = Ma