Physics-
General
Easy
Question
A point initially at rest moves along 
axis. Its acceleration varies with time as 
If it starts from origin, the distance covered in 2 s is
- 20 m
- 18 m
- 16 m
- 25 m
The correct answer is: 18 m
Given, 
Or 
Integrating, we get
Or
Again 
Integrating again, we get
When, 
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