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Question

Physics Question on Motion in a straight line

Which graph corresponds to an object moving with a constant negative acceleration and a positive velocity ?

A

velocity-time graph

B

velocity-time graph

C

velocity-time graph

D

velocity-time graph

Answer

velocity-time graph

Explanation

Solution

a=Ca = -C

VdVdx=C\frac{VdV}{dx} = -C

VdV=CdXVdV = - CdX

V22=Cx+k\frac{V^{2}}{2} = -Cx + k

x=V22C+KCx = -\frac{V^{2}}{2C}+\frac{K}{C}

The Correct Option is (C): \text{The Correct Option is (C): }velocity-time graph