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
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Answered by
5
Step-by-step explanation:
108km/ h = 108 x10³/3.6x10³ = 30m/s
deceleration = 30/30 = 1m/s²
Answered by
3
90 ia the answer
because
formula is speed by time
108 KMPH convert in m per sec it is 9720
9720/30 =90
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