Question

solve this question please​

Answer 1

Answer:

Explanation:

question 1 and 3 have same reason

1 as pressure is inversely proportional to area so while sewing a small effort when applied on small area produces large pressure so it is easy to sew

2  kepler's third law states that the square of period of revolution of planet around sun is directly proportional to cube of radius

3 as pressure is inversely proportional to area so while knife  a small effort when applied on small area produces large pressure so that objects can be cut easily