Part A Determine the moment of the force about point O Assum

Part A

Determine the moment of the force about point O. Assume F= 400 N .

Express your answer to three significant figures and include the appropriate units.

Solution

F = 400

F along vertical directions =

F cos 60 = 200

Lever length = Horizontal distance from ) to F

= 0.4+0.3 cos 45

= 0.4+0.2123

= 0.6123

Hence moment of F about O = F cos 60 (0.6123)

=122.46 Newton metres