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An object hits the ground travelling at 8 km/hr. It is brought to rest in 0.4 seconds. What is its acceleration in m/s^2?

An object hits the ground travelling at 8 km/hr. It is brought to rest in 0.4 seconds. What is its acceleration in m/s^2?
asked 96.6k views
21 votes
An object hits the ground travelling at 8 km/hr. It is brought to rest in 0.4 seconds. What is its

acceleration in m/s^2?

asked
User Konifar
by
8.6k points

1 Answer

4 votes

Step-by-step explanation:

8km/hr---→2.22m/s

a=v-u/t

0-2.22/0.4

5.55m/s²

answered
User Sarath Chandra
by
8.0k points
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