Question

a vector of length l is turned through the angle theta about its tail. the change in the position vector of head is

Answer 1

When the vector length is turned through the angle theta, it forms an arc.

An isosceles triangle will be formed when you join both the heads of the vector. Based on it, the position of the vector head is determined.

The change in position of the vector head is as follows

Theta*l (the arc length =radius length *angle created)