# Question #74469

##### 1 Answer

#### Explanation:

The cylinder with mass

The adhesive is able to balance the weight of the cylinder

It implies that the adhesive has just capacity of holding downwards force per unit area

When the mass if the cylinder is changed to

We see that the mass has increased by

As the holding power of the adhesive does not change, therefore the area of cross section must be increased by the same factor for the new cylinder to stay attached with the ceiling.

Therefore, required area of cross section