1.

C) A force (in Newton) expressed in vector notation as F = 4î + 7j – 3k is appliedon a body and produces a displacement (in meter), D = 3 + 2j - 5k in 4seconds. Estimate the power.​

Answer»

Answer:

EXPLANATION:

Power = Work Done/Time

Work Done(W) = FORCE X Displacement = F.s = (4i + 7j - 3k).(3I + 2j - 5k)

                                                                          = 12 + 14 + 15 = 41

Power = 41/4 = 10.25



Discussion

No Comment Found

Related InterviewSolutions