1.

One of the rectangular components of a velocity of 20 ms is 10ms. find other component

Answer»

GIVEN velocity v = 20 m/s


let the given rectangular COMPONENT is


cos somponent, so 10 = v cos x


so, other component will be SIN component


i.e., v sin x


or, 10 = 20 cos x


or, cos x = 1/2


and as sin^2 x + cos^2 x = 1


or, 1 - cos^2 x = sin^2 x


or, 1 - (1/2)^2 = sin^2 x


so, sin x = sqrt( 1 - 1/4)


or, sin x = sqrt(3/4)


so, rectangular component is


20 sin x = 20 sqrt(3/4)


= 10 sqrt3


= 17.32 m/s


Discussion

No Comment Found

Related InterviewSolutions