Aboard, with a weight of 85 n and length of 6.0 m is supported by two vertical ropes. rope a is connected to one end of the board and rope b is connected a distance of 1.5 m from the other end of the board. a box with a weight of 25n is placed on the board with its center of mass 1.0 m from rope a. what is the tension in rope a?

47.78 N

Explanation:

Given

Weight of Board W=85 N

length of board L=6 m

Rope B is connected from the other end of the board at a distance of 1.5

Box with a weight of 25 N is Placed on the board at distance of 1 m from Rope A

Let and be the Tension in the rope at side A and B

Now Taking moment about

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

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