If the force of friction is 2 newtons, what is the mass of the box?
2007-01-30 10:50:33 · 3 answers · asked by nkh0003 1 in Science & Mathematics ➔ Physics
(friction force)=(mew)x(normal force)
2 = 0.1 x Fn
Fn = 2/0.1= 20 N
and Fn = mg
20 = mx 9.8
so: m =20/9.8 = 2.04 kg
and there you have it
2007-01-30 11:02:43 · answer #1 · answered by cool snoopy 1 · 1⤊ 0⤋
Force of Friction is equal to the coefficient of friction multiplied by the normal force. The normal force on a level surface is equal to the weight in Newtons, of the mass. I assume knowing the weight, you can find the mass.
2007-01-30 19:01:15 · answer #2 · answered by Bigfoot 7 · 0⤊ 0⤋
f = k F, where f = friction force, k = coefficient of friction, and F = the normal force of the block on the surface.
So F = f / k = 2 N / 0.1 = 20 N, therefore the mass of the block is (20 N / 9.8 m/s²)
I'll leave it to you to work through the numbers.
2007-01-30 19:00:43 · answer #3 · answered by . 4 · 0⤊ 0⤋