First slide
Vectors
Question

Three forces start acting simultaneously on a particle moving with velocity v. These forces are represented in magnitude and direction by the three sides of a triangle ,ABC (as shown). The particle will now move will velocity

Easy
Solution

Here, the three forces are along the three sides of a triangle taken in same order. Therefore, their resultant is zero. Now according to Newton's law, the body will continue to move with the same velocity.

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