Questions
The moment of force F= acting at points (- 2,3, 4) about point (1, 2, 3) is
detailed solution
Correct option is B
r =r1 -r2=(- 2i^+3j^ + 4k^) -(i^+2j^ + 3k^)=-3i^+j^+k^Moment of the force = r x F=ijk-311111 = i^(1 -1) + j^ (1 + 3) + k^ (-3 -1)=8j-4k- 4(j-k)Talk to our academic expert!
Similar Questions
A body is placed on a horizontal frictionless surface. When a horizontal force F is applied on the body, it is observed that the body makes only translational motion. The which of the following points may be the positions of its centre of mass?
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