F=ma 2024 Problem 05

Physics · mechanics

Problem

Question: As shown in the figure, a massless inclined plane with angle

30^{\circ}

to the horizontal is fixed to a scale. A block of mass

m

is released from the top of the plane, which is frictionless. As the block slides down the plane, what is the reading on the scale? (A)

\sqrt{3}{mg}/4

. (B)

{mg}/2

. (C)

{3mg}/4

. (D)

\sqrt{3}{mg}/2

. (E)

{mg}

. *Note: This problem references figure(s): `image_question/F=MA_2024_05_1.png`*