A worker is raising a 9.2-m-long ladder of mass 53 kg as shown. Knowing g a = 1.8 m and that the...

Question

A worker is raising a 9.2-m-long ladder of mass 53 kg as shown. Knowing g a = 1.8 m
and that the force exerted by the worker is perpendicular to the ladder
a) The torque about point O is zero:  cos 0
2
g
L
F F L a      
1.75
sin 0.236 cos 0.971
9.2 1.8
    


...

David · Accepted Answer

A worker is raising a 9.2-m-long ladder of mass 53 kg as shown. Knowing g a = 1.8 m 
and that the force exerted by the worker is perpendicular to the ladder 
a) The torque about point O is zero:  cos 0
2
g
L
F F L a        
1.75
sin 0.236 cos 0.971
9.2 1.

A worker is raising a 9.2-m-long ladder of mass 53 kg as shown. Knowing g a = 1.8 m and that the force exerted by the worker is perpendicular to the ladder, determine, (a) The force exerted by the...

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