Question

C. State TRUE or FALSE.
1. A boy riding a bicycle applies non-contact force...........
2. Gases exert pressure only in downward direction............
3. A balanced force can change the state of motion............
4. force is specified only by its magnitude but not direction.................
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Answer 1

1) false

2) false

3) false

4) false

pls mark brainliest

Answer 2

Answer:

1. A boy riding a bicycle applies noncontact force:- False

2. Gases exert pressure only in a downward direction:- False

3. A balanced force can change the state of motion:- False

4. Force is specified only by its magnitude but not direction.:-False

Explanation:

1. A non-contact force is one that is exerted on an object by a body other than the one that is in actual physical contact with it. Since, when one rides a bicycle he has to pedal which makes direct contact with the bicycle. Hence, the statement is false.

2. The gas particles have very weak attraction between them and move randomly ultimately exerting pressure in every direction. Hence, the statement is false.

3. A change in motion is not brought about by balanced forces. An item at rest will not move when subjected to balanced forces. Unbalanced forces are those that affect an object's motion differently. Hence, the statement is false.

4. Force is a vector quantity because it is a physical quantity that has both magnitude and direction. It is customary to depict forces using diagrams in which a force is represented by an arrow because a force is a vector with a direction. The size and direction of the arrow both indicate the strength of the force and the direction in which it is acting. Therefore, the statement is false.

Hence all the statements are false.

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