A glimpse of vector.....................
Classical Mechanics
Level
1
A particle moves under the influence of a force 20i+15j-15k Newton and velocity is 6i-4j+3k meter/second. Instantaneous power applied to the particle is
The answer is 15.
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1 solution
We all know that Power is equal to the scalar product of Force and velocity.
P = (20 , 15 , -15) . (6 , -4 , 3)