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NEET 2023
Exam
NEET
Year
2023
Subject
Physics
Chapter
Laws of Motion

NEET 2023 · Physics · Laws of Motion

A block of mass 2 ~kg is placed on an inclined rough surface AC (as...

A block of mass 2 kg2 \mathrm{~kg} is placed on an inclined rough surface AC\mathrm{AC} (as shown in figure) of coefficient of friction μ\mu. If g=10 ms−2g=10 \mathrm{~ms}^{-2}, the net force (in N\mathrm{N} ) on the block will be A block of mass 2 ~kg is placed on an inclined rough surface AC (as shown in figure) of coefficient of friction μ . If

Options

  1. A1010
  2. B2020
  3. C10310 \sqrt{3}
  4. DZero

Correct answer

D. Zero

Step-by-step solution

⇒(Fnet )H=mgsin⁡30∘−μmgcos⁡30∘=mg2−13mg⋅32\begin{aligned} \Rightarrow\left(F_{\text{net }}\right) \mathrm{H} & =m g \sin 30^{\circ}-\mu m g \cos 30^{\circ} \\ & =\frac{m g}{2}-\frac{1}{\sqrt{3}} m g \cdot \frac{\sqrt{3}}{2}\end{aligned}F_{\text{net }}=0$
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