Question 2

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/s^{2}

Answer

(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/s^{2} is a vector quantity as it involves magnitude as well as direction.

saichatura
2018-06-22 03:41:29

According to 2nd question....2 meters means scalar how come it is vector....

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