AP EAMCET · PHYSICS · Laws of Motion
If the tension in the horizontal wire shown in the figure is 30 N, then the weight W and tension in the wire OA are respectively
- A \(30 \sqrt{3} \mathrm{~N}, 30 \mathrm{~N}\)
- B \(30 \sqrt{3} \mathrm{~N}, 60 \mathrm{~N}\)
- C \(60 \sqrt{3} \mathrm{~N}, 30 \mathrm{~N}\)
- D \(60 \sqrt{3} \mathrm{~N}, 60 \mathrm{~N}\)
Answer & Solution
Correct Answer
(B) \(30 \sqrt{3} \mathrm{~N}, 60 \mathrm{~N}\)
Step-by-step Solution
Detailed explanation
\(T_{OA} \cos 60^\circ = 30 \mathrm{~N}\) \(T_{OA} = \frac{30}{\cos 60^\circ} = \frac{30}{1/2} = 60 \mathrm{~N}\) \(W = T_{OA} \sin 60^\circ\) \(W = 60 \times \frac{\sqrt{3}}{2} = 30 \sqrt{3} \mathrm{~N}\) Weight W = \(30 \sqrt{3} \mathrm{~N}\), Tension in wire OA =…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- A physical quantity \(P\) is related to four observables \(a, b, c\) and \(d\) as \(P=\frac{\sqrt{a b} \cdot d^\alpha}{\sqrt{c}}(\alpha\) is constant) The percentage errors in \(a, b, c\) and \(d\) are \(0.5 \%\) in each. If the percentage error in \(P\) is \(2 \%\), then \(\alpha\) isAP EAMCET 2022 Medium
- Two planets, A and B orbit around a star such that time period of \(A\) is 8 times the time period of \(B\). The ratio of orbital velocities of the planets A and B isAP EAMCET 2022 Easy
- Two metallic spheres \(P\) and \(Q\) are made of same material have same smoothness but the weight of \(P\) is 8 times that of \(Q\). If the two are heated to same temperature and left to cool, then the ratio of rate of cooling of \(Q\) to that of \(P\) isAP EAMCET 2019 Medium
- In some ferromagnetic materials magnetization disappears on the removal of the external magnetic field. Such materials are calledAP EAMCET 2023 Easy
- In an oscillating \(L C\) circuit, the maximum charge on the capacitor is \(Q\). The charge on the capacitor when the energy is stored equally between the electric and magnetic fields isAP EAMCET 2019 Easy
- The top of a smooth inclined plane of length \(20 \sqrt{2} \mathrm{~m}\) is connected to the edge of a well of diameter \(40 \mathrm{~m}\) making an angle \(45^{\circ}\) as shown in figure. A body is projected along the inclined plane with a velocity ' \(u\) '. If the body crosses the well without falling in it then the minimum value of ' \(\mathrm{u}\) ' is \(\left(\mathrm{g}=10 \mathrm{~ms}^{-2}\right)\)
AP EAMCET 2017 Medium
More PYQs from AP EAMCET
- An alternating current is given by \(\mathrm{i}=(3 \sin \omega t+4 \cos \omega t)\)
A. The \(r m s\) current will beAP EAMCET 2024 Easy - In lanthanide series, the element well known to exhibit +4 oxidation state isAP EAMCET 2018 Easy
- Two bodies of \(6 \mathrm{~kg}\) and \(4 \mathrm{~kg}\) masses have their velocity \(5 \hat{\mathbf{i}}-2 \hat{\mathbf{j}}+10 \hat{\mathbf{k}}\) and \(10 \hat{\mathbf{i}}-2 \hat{\mathbf{j}}+5 \hat{\mathbf{k}}\) respectively. Then the velocity of their centre of mass isAP EAMCET 2007 Easy
- If \(\frac{x^2}{(2 x-1)(x+2)(x-3)}\) \(=A+\frac{B}{2 x-1}+\frac{C}{x+2}+\frac{D}{x-3}\), then \(A\) is equal toAP EAMCET 2005 Easy
- If \(u+i v=\frac{3 i}{x+i y+2}\), then \(y=\)AP EAMCET 2018 Medium
- If the rate of disappearance of \(\mathrm{N}_2 \mathrm{O}_5\) in the following reaction is \(1.2 \times 10^{-5}\) in \(\mathrm{mol} \mathrm{L}^{-1} \mathrm{~s}^{-1}\), the rate of production of \(\mathrm{NO}_2 \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}\) is
\(2 \mathrm{~N}_2 \mathrm{O}_5(g) \longrightarrow 4 \mathrm{NO}_2(g)+\mathrm{O}_2(g)\)AP EAMCET 2022 Easy