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प्रश्न
By giving an example, prove that rest and motion are relative terms.
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उत्तर
Rest and motion are relative terms. It means a body at rest in one situation at certain time can be in motion in another situation at the same time.
A person sitting in the compartment of a moving train is in the state of rest with respect to the surrounding of the compartment yet he is in state of motion, if he compare himself with the surroundings outside the compartment.
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संबंधित प्रश्न
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State whether the following is scalar or vector quantity
Force
Copy the following table and fill in the blank spaces.
| Quantity | S.I. Unit | Scalar or Vector |
| ___________ | kg m−3 | ___________ |
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Different positions of a body are given below. Which of the two positions lie on the same straight line?
(i) 8 m, 60o NE
(ii) 3 m, 60o NE
(iii) 5 m, 60o EN
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Answer the following question:
Can we add two scalars?
Answer the following question:
Can we subtract a scalar quantity from a vector quantity? Is the reverse true?
Write down the three equations of motion.
