# 3 - Communications Questions Answers

A mass M is suspended by a rope from a rigid support

at A as shown in figure. Another rope is tied at the end

B, and it is pulled horizontally with a force F. If the rope

AB makes an angle with the vertical in

equilibrium,then the tension in the string AB is

**Asked By: ATUL YADAV**3 year ago

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**submit your answer**
A constant force F is applied in horizontal direction as

shown. Contact force between M and m is N and

between m and M is N then

**Asked By: ATUL YADAV**3 year ago

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**submit your answer**two trains each 100m long ,oving in opposite directions ,cross each other in 8sec .if one is moving twice as fast than other ,then the speed of the faster train is?

**Asked By: YOMOL RAJU**6 year ago

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**submit your answer****Answer Strategies and trick by Manish sir**(it will help you to solve it by yourself)

Crossing means to cover the length of both the trains

so according to the given conditions 2v+v = (100+100)/8

or 3v = 25 or v = 25/3

so speed of faster train = 50/3 m/s