Question

how do kinetic friction and static friction compare when pushing on a box? (1 point)
static friction is always greater than kinetic friction, so it requires more force to start moving the box than to keep moving it.
static friction is less than kinetic friction, so it requires less force to start moving the box than to keep moving it.
static friction is the same as kinetic friction, so it requires the same force to start moving the box and keep moving it.
static friction is the same as kinetic friction, but the momentum of the box makes it require more force to start moving the box than to keep moving it.

Explanation:

Static friction resists the initiation of motion. Once an object is in motion, kinetic friction acts. The coefficient of static friction is generally greater than the coefficient of kinetic friction for the same surfaces, so more force is needed to overcome static friction and start the box moving than to overcome kinetic friction to keep it moving.

Answer:

Static friction is always greater than kinetic friction, so it requires more force to start moving the box than to keep moving it.