Question

A student is sitting in a chair. The student's mass is 55 kg. Find the normal force exerted on the student by thechair, in N.Round your answer to one decimal place

Answer 1

We have the next diagram

Where N is the normal and W is the weight

Therefore

N=W

The formula to calculate the W is

$W=mg$

where m is the mass and g is the gravity

In our case,

m=55

g=9.8 m/s^2

$W=55(9.8)=539N$

Therefore the normal force

N=539N

ANSWER

the normal force is 539N