1.

A body constrained to move along the Z-axis of a co-ordinate system is subjected to a constant force vectors F =(i +2ȷ +3k)N1. What is the magnitude of force along z direction.2. What is the work done by this force in moving the body over a distance of 4m along z-axis.

Answer»

1. 3N

2. Work done = Force × Displacement = 3 × 4 = 12J.



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