Question

Plzzz answer all my questions

STD 8 other information is in the photo

Answer 1

Answer:

1.To increase the area and decrease the pressure

2.To decrease area and increase pressure to cut anything smoothly

3.The women wearing heels feel uncomfortable because it pressure point in less area so sand move and she will be unable to balance

4.

5.Force bring change

Force changes direction ,shapes etc

Force can be push or pull

Answer 2

Answer:

1. to carry light heavyweight.
2. because sharp easily can cut the air water and other materials like solid.
3. the lady who were sandals with pointed heels.because the reason is in the above answer.
4. contact force need help of object to apply force and non-contact force not need any help of object to apply force.
5. force help to move an object and to stop moving an object. (ii) force help to change the direction of an object. (iii) force help to change shape of the object.