Question

A body is acted upon by two forces each of magnitude F, but in opposite directions, state the effect of forces if the forces act along same line of action *


Resultant force equal to zero

Moment of force equal to zero

There will be no motion

All the above

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Answer 1

Answer:

all the above is the answer.........

Answer 2

All the above .

If the body is acted upon by 2 forces each of the magnitude F, but in the opposite directions, effect of forces if forces act along same line of action will be :

• We are applying 2 forces in same magnitude but in the opposite. So forces will be F and -F. Hence resultant force is F+(−F)=0.

Hence, option A is correct.

• Here, perpendicular distance is the same for both of the forces. So, if we calculate 'r×F' cross product, we get the same magnitude of moments but opposite in direction as force are of opposite in direction. Hence the moment of a force is also 0.

Hence, option B is correct.

• Without any of the resultant force & the moment of force, there will be no motion.

Hence, option C is correct.

Hence, the correct answer is  Option (D) All the above.

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