Physics

Problem

A small block is released from rest on a smooth plane whose angle of inclination

\theta

with the horizontal can be varied continuously from

0^{\circ}

90^{\circ}

. Which statement correctly describes how the acceleration

a

of the block and the normal reaction

R

acting on it change as

\theta

increases? a) Both

a

and

R

increase b)

a

decreases while

R

increases c)

a

increases while

R

decreases d)

a

remains constant while

R

decreases