Mathematics · Kinematics and Calculus
An object moves with speed v = xt2 - yt (in SI units), where x, y > 0. At which time(s) is the object momentarily at rest?
- 1At t = 0 and t = (-y/x)
- 2At t = 0 and t = (y/x)✓
- 3At t = (y/x) only
- 4At t = 0 only
Correct answer
At t = 0 and t = (y/x)
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