Question

A wall clock has a minute hand with a length of 0.47 m and an hourhand with a length of 0.26 m. Take the center of the clock as theorigin, and use a Cartesian coordinate system with the positive xaxis pointing to 3 o'clock and the positive y axis pointing to 12o'clock. Express the position vectors of the tip of the hour hand() and the tip of the minute hand () at the followingtimes.(determine whether it is positive or negative x , positive ornegative y in each vector
(a) 12:00
=A ( m)

=B ( m)

(b) 3:00
= A( m)

=B ( m)

(c) 6:00
=A ( m)

=B ( m)

(d) 9:00
=A ( m)

=B ( m)