Question

The position vector of a point p is r=xi+yj+zk and a=i+2j+k if r.A=20 the number of possible position of p is

Answer 1

Step-by-step explanation:

Step-by-step explanation:. Let r = xi + yj + zk represents the position vector from a fixed origin O to a point P, andsuppose that the xyz axis system is rotating about a fixed vector w through O, with angularvelocity of constant magnitude w.(a) By calculating dr/dt, and noticing that di/dt =w x i, and so forth, obtain the velocity vector inthe formv = vo + w X rwhere the vectorvo=dx/dti+dy/dt j+dz/dt k Is the velocity vector which would be obtained if the axes were fixed.(b) Obtain the acceleration vector in the forma=ao+2w x vo+ w x(wxr),Where vo is defined in part (a), and whereao=d^2x/dt^2i+d^2y/dt^2j+d^2z/dt^2 k