- Messages
- 2,797
- Reaction score
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- Points
- 273
There are two ways to do this, either equate the equation you found in part (i) to 0 (since displacement is 0 at O).
Or, use a definite integral with limit t (at O) and 0 (at point where object is at rest) and equate it to 36, since the displacement till O covered is 36.