MCQ
A wooden block, initially at rest on the ground, is pushed by a force which increases linearly with time $t$. Which of the following curve best describes acceleration of the block with time :
- A
- ✓
- C
- D
✓
Answer
Correct option: B.
b
$\mathrm{F}=\mathrm{ma} \Rightarrow \mathrm{a}=\frac{\mathrm{F}}{\mathrm{m}}=\frac{\mathrm{kt}}{\mathrm{m}}$
$\mathrm{F}=\mathrm{ma} \Rightarrow \mathrm{a}=\frac{\mathrm{F}}{\mathrm{m}}=\frac{\mathrm{kt}}{\mathrm{m}}$
a vs $t$ will be straight line passing through origin. Since option $(2)$.
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