a constant force is 150 n used to pull a box along a floor at a constant speed. the weight of the box is 450 N.
a) what is the upward perpendicular force exerted by the floor on the box?
b) what is the net force acting on the object if friction is 50 N.
2006-10-23 10:02:34 · 2 answers · asked by lincolngomes301 2 in Science & Mathematics ➔ Physics
A) From Newton's 3rd Law, the floor will exert a force equal and opposite to the weight of the box, which is -450 N.
B) Net force = force exerted - force of friction = 150-50= 100 N.
2006-10-23 10:12:43 · answer #1 · answered by cuongnguyen4326 1 · 0⤊ 0⤋
I agree with the answer given above. a.The upward perpendicular force exerted by the floor on the box equals 450N. b. The net force acting on the object is
100N.
Regards.
2006-10-24 10:20:46 · answer #2 · answered by tul b 3 · 0⤊ 0⤋