Question
Download Solution PDFThe position of a particle is given by x = -2t2 + 4t. How much time the particle will take to come in rest?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Velocity: The displacement per unit time is called velocity.
where v is the velocity, Δx is the change in displacement, Δt is the change in time.
A body comes to rest when the velocity is zero.
CALCULATION:
Given that position of a particle is given by: x = -2t2 + 4t
velocity
A body comes to rest when the velocity is zero.
t = 1 sec
So the correct answer is option 2.
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