A particle moves with a velocity (5 i -3 j +6 k ) ms ⁻¹ horizontally under the action of constant force (10 i +10 j +20 k ) N . The instantaneous power supplied to the particle is:

Question

Quantrex Academy · Accepted Answer

Correct answer: B. 140 ~W

Instantaneous power is given by P= F V aligned P & =[10 i +10 j +20 k ] [5 i -3 j +6 k ] W & =[50-30+120] W =140 ~W aligned

A particle moves with a velocity (5 i -3 j +6 k ) ms ⁻¹ horizontally under the action of constant force (10 i +10 j +20 k ) N . The instantaneous power supplied to the particle is:

Options

Correct answer

Step-by-step solution

More from Work, Power and Energy