A body of mass 2kg begins to slide down a plane inclined at an angle of 45° with the horizontal. The force of friction will be?
(a) 19.6sin 45°
(b) 9.8sin 45°
(c) 19.6cos 45°
(d) 9.8cos 45°
This question was posed to me in an interview for internship.
This question is from Friction and Motion in section Laws of Motion of Engineering Physics I