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NEET 2024
Exam
NEET
Year
2024
Subject
Physics
Chapter
Laws of Motion

NEET 2024 · Physics · Laws of Motion

A box of mass 5 kg is pulled by a cord, up along a frictionless...

A box of mass 5 kg is pulled by a cord, up along a frictionless plane inclined at 30∘30^{\circ} with the horizontal. The tension in the cord is 30 N . The acceleration of the box is (Take g=10 m s−2g=10 \mathrm{~m} \mathrm{~s}^{-2} )A box of mass 5 kg is pulled by a cord, up along a frictionless plane inclined at 30^ with the horizontal. The tension

Options

  1. A2 m s−22 \mathrm{~m} \mathrm{~s}^{-2}
  2. BZero
  3. C0.1 m s−20.1 \mathrm{~m} \mathrm{~s}^{-2}
  4. D1 m s−21 \mathrm{~m} \mathrm{~s}^{-2}

Correct answer

D. 1 m s−21 \mathrm{~m} \mathrm{~s}^{-2}

Step-by-step solution

T−Mgsin⁡30=MaT-M g \sin 30=M a A box of mass 5 kg is pulled by a cord, up along a frictionless plane inclined at 30^ with the horizontal. The tension
30−5×10×12=5a30-5 \times 10 \times \frac{1}{2}=5 a a=1 m/s2a=1 \mathrm{~m} / \mathrm{s}^2
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