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A scalar is a quantity that describes magnitude(size) only. It does not include direction.

Examples:

Distance (2 cm, 4km)

Speed (50 km/h)

Mass (3g, 45 kg)

A vector is a quantity that describes both magnitude and direction.

Examples:

Displacement (6km north)

Velocity (60 km/h east)

Force (15N downward)

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16y ago

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