SATHEE: Laws Of Motion Question 400

Laws Of Motion Question 400

Question: String is massless and pulley is smooth in the adjoining figure total mass or left hand side of the pulley side of the pulley is $m_{1}$ and on right hand side is $m_{2}$ . Friction coefficient between block B and the wedge is $μ = \frac{1}{2}$ and $θ = 30^{\circ}$ Select thewrong answer

Options:

A) Block B will slide down if $m_{1} = m_{2}$

B) Block B may remain stationary with respect to wedge, for suitable values of $m_{1}$ and $m_{2}$ with $m_{1} > m_{2}$

C) Block B cannot remain stationary with respect to wedge in any case

D) Block B will slide down if $m_{1} > m_{2}$

Show Answer

Answer:

Correct Answer: B

Solution:

If $m_{1} = m_{2}$ , block will slide down when

$μ g \cos θ < g \sin θ$ or $\frac{1}{2} (\frac{\sqrt{3}}{2}) < \frac{1}{2}$

If $m_{1} = m_{2}$ , block will slide down when

$μ (g + a) \cos θ < (g - a) \sin θ$

or $\frac{1}{2} (\frac{\sqrt{3}}{2}) < \frac{1}{2}$ where $a = (\frac{m_{2} - m_{1}}{m_{1} + m_{2}}) g$

therefore in all cases block will slide down

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अगला

Laws Of Motion Question 400

Question: String is massless and pulley is smooth in the adjoining figure total mass or left hand side of the pulley side of the pulley is $m_{1}$ and on right hand side is $m_{2}$ . Friction coefficient between block B and the wedge is $μ = \frac{1}{2}$ and $θ = 30^{\circ}$ Select thewrong answer

Options:

Answer:

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

Laws Of Motion Question 400

Question: String is massless and pulley is smooth in the adjoining figure total mass or left hand side of the pulley side of the pulley is m1 and on right hand side is m2 . Friction coefficient between block B and the wedge is μ=12 and θ=30∘ Select thewrong answer

Options:

Answer:

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

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