When a boy is in motion , there is a change in position.
A quantity that has inly magnitude and is called ………… .
A scalar is the magnitude of a vector .
A vector can be expressed by an arrow.
The sum of two (or) more vectors is called vector component.
If X ⃗ = -Y ⃗, then X ⃗ and Y ⃗ have the same magnitudes.
Distance is a scalar quantity.
The sum of two vectors , having unequal magnitudes, be equal to zero.
Force has both magnitude and direction.
Time is a scalar quantity.
If R ⃗= A ⃗+ B ⃗, then R ⃗ is the resultant vector of A ⃗and B ⃗.
If P ⃗= 1/3 Q ⃗ , then the magnitude of P ⃗ is less than that of Q ⃗.
Velocity vector v ⃗ and force F ⃗ may not be product.
The new vectors obtain from sub-dividing a vector is called vectors components.
Vector subtraction is, in fact vector addition.
For given diagram,
O ⃗+ P ⃗+ Q ⃗+ R ⃗ = 0
…………………………………………………………………………………………………….
Key>>>>>
1.TRUE 2. TRUE 3. TRUE 4. TRUE 5. FALSE 6. TRUE 7. FALSE 8. FALSE 9. FALSE 10. TRUE 11. FALSE 12. TRUE
……………………………………………………………………………………………………
Thanks!
