1.

A lorry driver sees a old man crossing the road. Suddenly he applies brakes and stops the lorry within 30 seconds. If the initial speed of the lorry is 108 km/hr, find its deceleration

Answer»

Step-by-step explanation:

108km/ H = 108 x10³/3.6x10³ = 30m/s

deceleration = 30/30 = 1m/s²



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