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3 years ago

14

A dock worker pulls two boxes connected by a rope on a horizontal floor, as shown in the figure . All the ropes are horizontal,

and there is some friction with the floor.Make a free-body diagram of the box B.

2 answers:

puteri [66]3 years ago

7 0

Answer:

The worker pulls the boxes. The force (F) on box B acts towards right direction. The weigh (mg) of the box acts in the downward direction where as reaction force -Normal force (N) acts in the upward direction.

The contact surface between box and ground is not smooth and hence friction (<em>f </em>) would act in the opposite direction of the motion of the box. Tension (T) exist in the rope connecting the two boxes.

The free body diagram of box B is attached below showing all the forces acting on it.

harina [27]3 years ago

4 0

Ffriction B = frope > Ffriciton A
N = 1
F rope = 0.2
F Friction = 0.1
F worker = 0.3

F friciton A/ F friction B = 850/750

hope this helps

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Here F is the resultant force and it is represented as $F = ma$

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