AP EAMCET · PHYSICS · Work Power Energy
When the engine is switched off a vehicle of mass \(M\) is moving on a rough horizontal road with momentum \(p\). If the coefficient of friction between the road and tyres of the vehicle is \(\mu_k\), the distance travelled by the vehicle before it comes to rest is
- A \(\frac{p^2}{2 \mu_k M^2 g}\)
- B \(\frac{2 \mu_k M^2 g}{p^2}\)
- C \(\frac{p^2}{2 \mu_k g}\)
- D \(\frac{p^2 M^2}{2 \mu_k g}\)
Answer & Solution
Correct Answer
(A) \(\frac{p^2}{2 \mu_k M^2 g}\)
Step-by-step Solution
Detailed explanation
We have, \(\mu_k m g s=\frac{p^2}{2 M}\) or \(s=\frac{p^2}{2 M^2 \mu_k g}\)
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 metallic ring of radius \(r\) and cross sectional area \(A\) is fitted into a wooden circular disc of radius \(R(R>r)\). If the Young's modulus of the material of the ring is \(Y\), the force with which the metal ring expands isAP EAMCET 2004 Hard
- A circular coil of area \(0.01 \mathrm{~m}^2\) and 40 turns is rotated about its vertical diameter with an angular speed of 50 \(\mathrm{rad} \mathrm{s}^{-1}\) in a uniform horizontal magnetic field \(0.05 \mathrm{~T}\). If the average power loss due to joule heating is \(25 \mathrm{~mW}\), then the closed loop resistance of the coil isAP EAMCET 2022 Hard
- A large vessel with a small hole at the bottom is filled with water and kerosine with kerosine floating on water. The length of water column is \(20 \mathrm{~cm}\) and that of kerosine is \(25 \mathrm{~cm}\). The velocity with which water flows out of the hole is (density of kerosine \(=0.8 \mathrm{~g} \mathrm{~cm}^{-3}\), neglect viscous force).AP EAMCET 2017 Medium
- A small block of mass \(20 \mathrm{~g}\) and charge \(4 \mathrm{mC}\) is released on a long smooth inclined plane of inclination angle of \(45^{\circ}\), A uniform horizontal magnetic field of \(1 \mathrm{~T}\) is acting parallel to the surface, as shown in the figure. The time from the start when the block loses contact with the surface of the plane is
AP EAMCET 2019 Hard - The ratio energies of emitted radiation by a black body at \(600 \mathrm{~K}\) and \(933 \mathrm{~K}\) when the surrounding temperature is \(300 \mathrm{~K}\)AP EAMCET 2015 Easy
- A particle crossing the origin at time \(t=0\), moves in the \(x y\)-plane with a constant acceleration ' \(a\) ' in \(y\)-direction. If the equation of motion of the particle is \(y=b x^2\) (where b is a constant), then its velocity component in the x -direction isAP EAMCET 2025 Medium
More PYQs from AP EAMCET
- For a first order reaction , the concentrations vs time plot is as shown. The half-life of the reaction is
AP EAMCET 2020 Easy - An aromatic compound "A" on treatment with \(\mathrm{Zn} / \mathrm{NH}_4 \mathrm{Cl}\) and subsequent heating with ammonical silver nitrate solution gives a black precipitate. Which functional groups does "A" contain?AP EAMCET 2020 Easy
- If \(t_r\) is the \(r^{\text {th }}\) term in the expansion of \(\left(2^x+4^{-x}\right)^8\) and if \(t_3=7 t_2\) then \(x=\)AP EAMCET 2017 Easy
- Which one of the following cannot form an amphoteric oxide?AP EAMCET 2012 Easy
- An ellipse has 6 and 2 as length of major and minor axes respectively. If the centre is at \((5,6)\) and the major axis is along \(x-y+1=0\), then the ellipse isAP EAMCET 2022 Easy
- The cubic equation whose roots are thrice to each of the roots of \(x^3+2 x^2-4 x+1=0\) isAP EAMCET 2008 Medium