Question

MECHANICS (STATICS):

In the opposite figure, the force (F) acts a long the robe ABC , so that the weight (W) moves up with constant speed , If F = 520 N , then:

1) The tensile in the robe BC equal:

a) 855.3 N b)1224.5 N c) 265.2 N D) 1019.8 N

2) The angle Θ equal:

a)78.7 b) 56.3 c) 67.4 d)82.6

3) If both robes bear a tensile of maximum 500 N then:
3) The maximum weight (W) can move up with a constant speed equal:

a)495.3 N b)105.2 N c)254.7 N d)531.2 N

4) The angle Θ Corresponds to the maximum weight is:

a)62.4 b)78.7 c)52.6 d) 73.2