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Define resultant force?

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Define resultant force?

Posted by Banarasiya Don???? 4 years, 11 months ago

CBSE > Class 08 > Science

1 answers

Gaurav Seth 4 years, 11 months ago

When there is more than one force acting upon the same body. The different forces is altogether replaced by a single force. This force is called resultant force.

The formula of resultant force is F∨R = F∨1 + F∨2 + F∨3
If the force F∨2 is perpendicular to the force F∨1 then the formula is
F∨R = F∨1 + F∨3 - F∨2

EXAMPLE --
If three forces 60N , 45N and 30N are acting on a body simultaneously. 30N is opposite to the direction of other two. Calculate the resultant force.

SOLUTION --
As per the formula we will place the quantities.

(60N + 45N) - 30N
105N - 30N
= 75N

Hence, the resultant force for the question asked is 75N.

ANSWER

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