AP EAMCET · PHYSICS · Motion In One Dimension
At the moment \(\mathrm{t}=0\), a time dependent force \(\mathrm{F}=\) at (where a is constant equal to \(1 \mathrm{Ns}^{-1}\) ) is applied to a body of mass \(1 \mathrm{~kg}\) resting on a smooth horizontal plane as shown in the figure. If the direction of this force makes an angle \(45^{\circ}\) with the horizontal, then the velocity of the body at the moment it leaves the plane is
(acceleration due to gravity \(=10 \mathrm{~m} \mathrm{~s}^{-2}\) )
- A \(50 \mathrm{~ms}^{-1}\)
- B \(50 \sqrt{2} \mathrm{~ms}^{-1}\)
- C \(100 \sqrt{2} \mathrm{~ms}^{-1}\)
- D \(100 \mathrm{~ms}^{-1}\)
Answer & Solution
Correct Answer
(B) \(50 \sqrt{2} \mathrm{~ms}^{-1}\)
Step-by-step Solution
Detailed explanation
When body left the surface, \(\mathrm{N}=0\) So, \(m g=\) at \(\sin 45^{\circ}\) \(\mathrm{t}=\frac{\mathrm{mg}}{\mathrm{a} \sin 45^{\circ}}=\frac{10}{\frac{1.1}{\sqrt{2}}}=10 \sqrt{2} \mathrm{sec}\) Now,…
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
- Two parallel plate capacitors are connected in series. Each capacitor has a plate area ' \(A\) ' and a separation ' \(d\) ' between the plates. The dielectric constant of the medium between their plates are 2 and 4 . The separation between the plates of a single air capacitor of plate area \(A\) which effectively replaces the combination isAP EAMCET 2020 Hard
- Four condensers each of capacitance \(8 \mu \mathrm{~F}\) are joined as shown in the figure. The equivalent capacitance between the points A \& B will be
AP EAMCET 2024 Easy - Between the plates of a parallel plate capacitor of plate area \(\mathrm{A}\) and capacity \(0.025 \mu \mathrm{F}\), a metal plate of area, \(\mathrm{A}\) and thickness equal to \(\frac{1}{3}\) of the separation between the plates of the capacitor is introduced. If the capacitor is charged to \(100 \mathrm{~V}\), then the amount of work done to remove the metal plate from the capacitor isAP EAMCET 2023 Hard
- The radius ' \(r\) ' of a wire is given by \(r=\sqrt{\frac{64 \mathrm{LA}}{\pi \mathrm{Bv}}}\), where \(\mathrm{I}\) is electric current, \(\mathrm{B}\) is magnetic field and ' \(v\) ' is velocity. Then the parameter A in the formula represents ____.AP EAMCET 2017 Medium
- A body is projected from the earth at angle \(30^{\circ}\) with the horizontal with some initial velocity. If its range is \(20 \mathrm{~m}\), the maximum height reached by it is : (in metres)AP EAMCET 2006 Easy
- Two identical thin bar magnets, each of length \(l\) and pole strength \(m\), are placed at right angle to each other with north pole of one touching south pole of the other. The magnetic moment of the system isAP EAMCET 2020 Medium
More PYQs from AP EAMCET
- Identify the incorrect statement regarding Reynold's numberAP EAMCET 2021 Easy
- If \(\mathbf{a}=t^2 \hat{\mathbf{i}}+e^t \hat{\mathbf{j}}+\hat{\mathbf{k}}\) and \(\mathbf{b}=2 \hat{\mathbf{i}}+t^2 \hat{\mathbf{j}}+\log t \hat{\mathbf{k}}\) and \(f(t)=\mathbf{a} \cdot \mathbf{b}\), then \(f^{\prime}(\mathrm{l})\) is equal toAP EAMCET 2021 Easy
- 2.644 g of metal (M) was deposited when 8040 coulombs of electricity was passed through molten \(\mathrm{MF}_2\) salt. What is the atomic mass of \(\mathrm{M}\left(\mathrm{F}=96500 \mathrm{C} \mathrm{mol}^{-1}\right)\)AP EAMCET 2024 Easy
- If \(\sin \theta+\cos \theta=p\) and \(\sin ^3 \theta+\cos ^3 \theta=q\), then \(p\left(p^2-3\right)\) is equal toAP EAMCET 2013 Medium
- For a reversible reaction \(\quad A \rightleftharpoons B\), which one of the following statements is wrong from the given energy profile diagram?
AP EAMCET 2018 Medium - If \(x=3-2 \sqrt{3} i\), then \(x^4-12 x^3+54 x^2-108 x-54=\)AP EAMCET 2025 Medium