Question

The image above shows a block pulled across a table. The spring scale which measures in Newtons, reads the force resisting the motion known as friction force. In the image above, what would be a reasonable measurement of friction force if normal force measured 100 Newtons?

Answer 1

normal force = Fg
100 =F(9.8)
10.20 = F
thus the friction force =10.20
i think ....i cant really see the diagram in my head

Answer 2

Frictional force = f = 30N

Step-by-step explanation:

In the given statement coefficient of kinetic friction (µk) is not given. So, if we consider both block and table are made of wood then:

coefficient of kinetic friction = µk = 0.3

Normal force = Fn = 100N

We know that:

Frictional force = f = µk × Fn

f = 0.3 × 100 = 30N