Physics
Physics
Problem
A block of mass lies at rest on a smooth horizontal surface. Calculate the magnitude of the normal reaction exerted by the surface on the block. (Take .)Intuitive explanation
This problem is about recognizing that a stationary object is in equilibrium, so all forces must balance. Since the block isn't accelerating vertically, the upward normal force must exactly equal the downward gravitational force—there's no net force. The key is identifying which forces act on the block and applying Newton's first law to find the one you're asked for.
Intuitive explanation
This problem is about recognizing that a stationary object is in equilibrium, so all forces must balance. Since the block isn't accelerating vertically, the upward normal force must exactly equal the downward gravitational force—there's no net force. The key is identifying which forces act on the block and applying Newton's first law to find the one you're asked for.