Question

lien is pushing a box across a table. she used a force of 100 n to get the box moving. which force did she overcome to get the box moving? the downward force of gravity on the box the upward force of the table on the box the reaction force on the box the push force on the box

Explanation:

Gravity acts vertically downwards and the table's upward force counter - acts it in the vertical direction. The reaction force is related to Newton's third law and is not the force preventing horizontal motion. The push force is what Lien applies. The force that resists the start of horizontal motion is friction, but among the given options, the reaction force (which includes frictional component in this context of starting motion) is the closest related to overcoming the resistance to get the box moving.

Answer:

the reaction force on the box