Question

D. Write T for true and F for false statement.
1. Kicking of a football is a contact force.
2. Weight of an object is equal to the force exerted by the earth on that body.
3. The SI unit of pressure is newton per square metre.
4. Pressure is directly proportional to the area of cross-section of the body.
5. Rolling friction is less than the sliding friction.
6. A boy standing on one leg exerts more pressure on the ground than a boy standing on two legs. please
please don't give wrong answer ​

Answer 1

Answer:

1- f

2-t

3-t

4-f

5-Sliding friction is the force resisting the motion when a body slides on a surface. The force of friction depends on the area of contact between the two surfaces. As the area of contact is less in the case of rolling than in the case of sliding, rolling friction is less than the sliding friction.

6-t