Question

forms/d/e/1FAIpQLSeQC9aP2WLau6pcakfeh7dc5Cb9DLRL3k7hC9qEO_QYBs8JlQ/viewform?hr_submission=Chkikd_Jyek.6. A 120 N horizontal force that is applied to a 20 kg mass on a flat surface 5 pointskeeps it moving at a constant speed of 4 m/s. The normal force from thesurface is *200 N120 NO 6NON

Answer 1

Since the mass is moving on a flat surface and there is no vertical force being applied, we have the following free body diagram:

The mass is not moving in the vertical direction, therefore the normal force is equal the weight force, so we have N = 200 N.

The correct option is the first one.