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प्रश्न
Classify the following measures as scalars and vectors:
(i) 15 kg
(ii) 20 kg weight
(iii) 45°
(iv) 10 meters south-east
(v) 50 m/sec2
उत्तर
The quantities which have only magnitude and which are not related to any
fixed direction in space are called scaler quantities or simply scalars.
The quantities which have both magnitude and direction are called vector quantities or simply vectors.
(i) Mass - Scalar
(ii) Weight(Force) - Vector
(iii) Angle - Scalar
(iv) Directed Disptance- Vector
(v) Magnitude of acceleration - Scalar
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