[AB=2i-4j+7k],[" Intial "pt=(1,5,0)],[" Find terminal "mu!=3^(2)]

Force 2hat(i) +7hat(j) , 2hat(i) +5hat(j)+7hat(k) and hat(i) -2hat(j) +hat(k) act at (4,-1,2) . Find the net torque of these forces about (6,1,-3)

If (1,2,4)and (2 , -3lambda , -3) are the intial and terminal points of the vetcor vec(i) + 5vec(j) - 7vec(k) then the value of lambda ………

If (1,2,4) and (2,-3 lambda , -3 ) are the initial and terminal points of the vector i+5j - 7k , then the value of lambda is

If vec(a)=2hat(i)-5hat(j)+3hat(k) " and " vec(b)=hat(i)-2hat(j)-4hat(k) , find the value of abs(3vec(a)+2vec(b)).

The scalar product of the vector i+j+k with a unit vector along the sum of vectors 2i+4j-5k and lambda i+2j+3k is equal to one.Find the value of lambda

If A = i + 2j + 3k, B = 2i + 4j + 7k and C = 2i + 3j + 5k are collinear, then the ratio in which B divides bar(AC) is