1. draw at least five (5) road safety signs and symbols that should be followed by motorists, commuters / pedestrians. color your drawing.
2. give at least one (1) desirable and one (1) undesirable effect of friction in road travelling or transportation.
2. give at least one (1) desirable and one (1) undesirable effect of friction in road travelling or transportation.
Answers & Comments
1.
2. Friction produces a lot of heat. Friction causes wear and tear of objects. Examples of undesirable effects of friction on people: Friction produces heat in different machine parts making it waste the energy as heat energy.
Explanation:
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