Physicshard · Past Paper
The displacement of a particle is given by x = (t-2)^2. When is the velocity zero?
At = 0 s
Bt = 2 s
Ct = 4 s
DNever
✓ Correct Answer: B — t = 2 s
Velocity v = dx/dt = 2(t-2). v=0 when t-2=0, which means t=2s.
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