Question

The weight of a book on an inclined plane can be resolved into two vector components, one along the plane, the other perpendicular to it.

At what incline angle are the components equal? I was kind of thinking 45 degress??????

At what incline angle is the parallel component equal to zero? I was thinking 90 degrees?????

At what incline angle is the parallel component equal to the weight?
I have no idea???

HELP!

Answer 1

(a) At what incline angle are the components equal?
(_) 0°
(_) 30°
(o) 45°
(_) 60°
(_) 90°
correct check mark
(b) At what incline angle is the parallel component equal to zero?
(o) 0°
(_) 30°
(_) 45°
(_) 60°
(_) 90°
correct check mark
(c) At what incline angle is the parallel component equal to the weight?
(_) 0°
(_) 30°
(_) 45°
(_) 60°
(o) 90°
correct check mark