For a particle moving under the action of a variable force, kinet… - Vidyadip

MCQ

For a particle moving under the action of a variable force, kinetic energy-position graph is given, then

A
At $A$ particle is decelerating
B
At $B$ particle is accelerating
C
At $C$ particle has maximum velocity
✓
At $D$ particle has maximum acceleration

✓

Answer

Correct option: D.

At $D$ particle has maximum acceleration

d
(d)

$F . d x=d K$

$\frac{d K}{d x}=F$

$\Rightarrow$ Slope of $K-x$ curve gives force

So slope is max at $D$, hence acceleration is maximum at $D$

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