The vector P̅ = aî + aĵ + 3k̂ and Q̅ = aî - 2ĵ - 1k̂ are perpendicular to each other. The positive value of ais - VgyanHub

Question:

30. The vector P̅ = aî + aĵ + 3k̂ and Q̅ = aî – 2ĵ – 1k̂ are perpendicular to each other. The positive value of ais

Options :

a) 3
b) 4
c) 9
d) 13

Answer :

a) 3

Answer Steps :

Solution :-

Step1 :-

Step2 :-

Video Tutorial

Related Questions

The kinetic energy of a particle executing a linear SHM is 16 J, when it is in the mean position. If the amplitude is 25 cm, periodic time of the particle in second is (Mass of the particle = 51.2 g)

A body of mass ‘M’ executes SHM Along x-axis with frequency ‘n’. At a distance x from the mean position, the body has kinetic energy ‘K’ and potential energy ‘P’. The amplitude of oscillation of the SHM is

The bob of a simple pendulum of ‘length ‘l’ is pulled through an angle ‘θ’ from its equilibrium position and them released. When it passes through its equilibrium position, its speed is given by: (g = acceleration due to gravity)

Explore Our Courses