A student pushes a crate toward the right with a horizontal force of

PHYSICS · Single correct · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

A student pushes a

10\,\text{kg}

crate toward the right with a horizontal force of

30\,\text{N}

. The crate does not move. Which statement correctly identifies the frictional force exerted by the floor on the crate? (a) A

30\,\text{N}

kinetic frictional force directed toward the left. (b) A frictional force of magnitude

\mu_s F_n

directed toward the left. (c) No frictional force acts because the crate never moves. (d) A

30\,\text{N}

static frictional force directed toward the left.