A vector `veca=that+t^2hatj` is rotated through a righat angle passing through the x-axis.
Channel: Doubtnut
Date: 2020-04-12

A vector `veca=that+t^2hatj` is rotated through a righat angle passing through the x-axis. What is the vector in its new position `(tgt0)?` (A) `t^2hati-thatj` (B) `sqrt(t)hati-1/sqrt(t)hatj` (C) `-t^2hati+thatj` (D) `(t^2hati-thatj)/(tsqrt(t^2+1)`