Classify the following measures as scalars and vectors.

(i) 10 kg (ii) 2 metres north-west (iii) 40°

(iv) 40 watt (v) 10^–19 coulomb (vi) 20 m/s²

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Solution

(i) 10 kg is a scalar quantity because it involves only magnitude.

(ii) 2 meters north-west is a vector quantity as it involves both magnitude and direction.

(iii) 40° is a scalar quantity as it involves only magnitude.

(iv) 40 watts is a scalar quantity as it involves only magnitude.

(v) 10^–19 coulomb is a scalar quantity as it involves only magnitude.

(vi) 20 m/s² is a vector quantity as it involves magnitude as well as direction.

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10 k g

2 m e t r e s

40^{o}

40 w a t t

10^{- 19}

20 m / s^{2}

Classify the below given measures as scalars and vectors:

(i) 10 kg

(ii) 2 m north-west

(iii) $40^{\circ}$

(iv) 40 W

(v) $10^{- 19} C$

(vi) $20 m / s^{2}$

Classify the given measure as scalar and vectors:
(i) 2 m north-west

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