Question

4 Points
A jar of mass 2.1 kg sits on a table. What is the normal force acting on the
jar?
O
A. 33.1 N.
B. 2.1 N
O C. 5.3 N
O D. 20.6N
SUBME​

Answer 1

The normal force acting on the  jar is 20.6 N

Solution:

Given that,

A jar of mass 2.1 kg sits on a table

To find: normal force acting on the  jar

The table is level and there are no other forces on the book, so the normal force is equal to the mass multiplied by acceleration due to gravity

$Force = m \times a$

Where,

m is mass

a is acceleration due to gravity

From given,

$m = 2.1\ kg\\\\a = 9.8\ m/s^2$

Substituting the values we get,

$F = 2.1 \times 9.8\\\\F = 20.58\\\\F \approx 20.6$

Thus normal force acting on the  jar is 20.6 N