AP EAMCET · PHYSICS · Motion In Two Dimensions
A 100 kg gun fires a ball of 1 kg horizontally from a cliff of height 500 m. It falls on the ground at a distance of 400 m from the bottom of the cliff. The recoil velocity of the gun is (Acceleration due to gravity \(=10 \mathrm{~ms}^{-2}\)).
- A \(0.6 \mathrm{~ms}^{-1}\)
- B \(0.8 \mathrm{~ms}^{-1}\)
- C \(0.2 \mathrm{~ms}^{-1}\)
- D \(0.4 \mathrm{~ms}^{-1}\)
Answer & Solution
Correct Answer
(D) \(0.4 \mathrm{~ms}^{-1}\)
Step-by-step Solution
Detailed explanation
Time of flight, \(\begin{aligned} & T=\sqrt{\frac{2 H}{g}}=\sqrt{\frac{2 \times 500}{10}}=10 \mathrm{~s} \\ & \therefore R=u . T \Rightarrow u=\frac{400}{10}=40 \mathrm{~m} / \mathrm{s} \end{aligned}\) \(\therefore\) Recoil velocity of gun,…
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
- The angle between the axes of a polariser and an analyser is \(45^{\circ}\). If the intensity of the unpolarized light incident on the polariser is 1 , then the intensity of the light emerged from the analyser isAP EAMCET 2024 Easy
- In Young's double slit experiment, first slit has width four times the width of the second slit. the ratio of the maximum intensity to the minimum intensity in the interference fringe system is :AP EAMCET 2006 Easy
- The objective and eyepiece of an astronomical telescope are double convex lenses with refractive index 1.5. When the telescope is adjusted to infinity, the separation between the two lenses is \(16 \mathrm{~cm}\). If the space between the lenses is now filled with water and again telescope is adjusted for infinity, then the present separation between the lenses isAP EAMCET 2012 Medium
- The ratio of heats generated through shunt and galvanometer is \(7: 5\) when they are connected to make an ammeter. If the resistance of the galvanometer is \(112 \Omega\) then the resistance of the shunt isAP EAMCET 2019 Easy
- Two moving coil galvanometer, \(X\) and \(Y\) have coils with resistance \(10 \Omega\) and \(14 \Omega\) cross-sectional areas \(4.8 \times 10^{-3} \mathrm{~m}^2\) and \(2.4 \times 10^{-3} \mathrm{~m}^2\), number of turns 30 and 45 respectively. They are placed in magnetic field of \(0.25 \mathrm{~T}\) and \(0.50 \mathrm{~T}\) respectively. Then, the ratio of their current sensitivities and the ratio of their voltage sensitivities are respectivelyAP EAMCET 2018 Hard
- A spherical capacitor has outer sphere of radius \(5 \mathrm{~cm}\) and inner sphere of radius \(2 \mathrm{~cm}\). When the inner sphere is earthed, its capacity is \(C_1\) and when the outer sphere is earthed its capacity is \(C_2\). Then \(\frac{C_1}{C_2}\) isAP EAMCET 2019 Easy
More PYQs from AP EAMCET
- The bond length of \(\mathrm{HCl}\) molecule is \(1.275 Ã…\) and its dipole moment is \(1.03 \mathrm{D}\). The ionic character of the molecule (in percent) (charge of the electron \(=4.8 \times 10^{-10} \mathrm{esu}\) ) isAP EAMCET 2008 Easy
- The set of molecules in which the central atom is not obeying the octet rule isAP EAMCET 2022 Easy
- [.] represents the greatest integer function. At \(x=-1, \frac{d}{d x} \sin \pi[x]=\)AP EAMCET 2022 Easy
- The wavelength of a particular electron transition for \(\mathrm{He}^{+}\) is 100 nm. The wavelength (in \(Å\)) of H atom for the same transition isAP EAMCET 2025 Medium
- If \(a>0\) and \(b^2-4 a c=0\), then the curve \(y=a x^2+b x+c\)AP EAMCET 2011 Easy
- When graphite is subjected to an electric arc in the presence of inert atmosphere, it givesAP EAMCET 2021 Medium