TS EAMCET · Physics · Laws of Motion
A man slides down on a telegraphic pole with an acceleration equal to one-fourth of acceleration due to gravity. The frictional force between man and pole is equal to in terms of man's weight \(w\)
- A \(\frac{w}{4}\)
- B \(\frac{w}{2}\)
- C \(\frac{3 w}{4}\)
- D \(w\)
Answer & Solution
Correct Answer
(C) \(\frac{3 w}{4}\)
Step-by-step Solution
Detailed explanation
Man is sliding down the telegraphic pole with acceleration \(g / 4\). So, \(\begin{array}{rlrl} & m g-F & =\frac{m g}{4} \\ \Rightarrow & & F & =m g-\frac{m g}{4} \\ \Rightarrow & F & =\frac{3 m g}{4} \\ \Rightarrow & & F & =\frac{3 w}{4}\end{array}\)
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 horizontal wire carries current below which another wire of linear density carrying a current is kept at distance. If the wire is kept below hangs in air, what is the current in this wire when the direction of current in both the wires is same?TS EAMCET 2022 Medium
- Four identical particles each of mass ' \(m\) ' are kept at the four comers of a square of side ' \(a\) '. If one of the particles is removed, the shift in the position of the centre of mass isTS EAMCET 2024 Medium
- A clock pendulum made of invar has a period of \(0.5 \mathrm{~s}\), at \(20^{\circ} \mathrm{C}\). If the clock is used in a climate where the temperature averages to \(30^{\circ} \mathrm{C}\), how much time does the clock lose in each oscillation? (For invar, \(\alpha=9 \times 10^{-7} /{ }^{\circ} \mathrm{C}\), \(g=\) constant \()\)TS EAMCET 2009 Easy
- The resistivity of a metal is \(1 \times 10^{-8} \Omega \mathrm{m}\). If it contains \(9 \times 10^{28}\) electrons per \(\mathrm{m}^3\) then the relaxation time of electrons inside the metal is nearly (electron mass \(=9 \times 10^{-31} \mathrm{~kg}\) )TS EAMCET 2022 Easy
- A car travelling at a speed of 54 kmph towards a wall sounds horn of frequency 400 Hz . The difference in the frequencies of two sounds, one received directly from the car and other reflected from the wall noticed by a person standing between the car and the wall is (speed of sound in air is \(335 \mathrm{~ms}^{-1}\) )TS EAMCET 2024 Medium
- Two cylinders \(A\) and \(B\) fitted with pistons contain equal number of moles of an ideal monoatomic gas at \(400 \mathrm{~K}\). The piston of \(A\) is free to move while that of \(B\) is held fixed. Same amount of heat energy is given to the gas in each cylinder. If the rise in temperature of the gas in \(A\) is \(42 \mathrm{~K}\), the rise in temperature of the gas in \(B\) isTS EAMCET 2009 Medium
More PYQs from TS EAMCET
- A bullet of mass moving horizontally with speed hits a wooden block of mass that is suspended from a massless string. The bullet gets lodged into the block and comes into halt. If the block-bullet combine swings to a maximum height then how much of the initial kinetic energy of the bullet is lost in the collision?TS EAMCET 2020 Medium
- A converging mirror is placed on the right hand side of a converging lens as shown in the figure. The focal length of the mirror and the lens are and respectively. The separation between the lens and the mirror is and their principal axes coincide. A point source is placed on the principal axis at a distance to the left of the lens. If the final beam comes out parallel to the principal axis, then the value of is:
TS EAMCET 2018 Medium - Choose the incorrect statement.TS EAMCET 2020 Medium
- Force is given by the expression, \(F=A \cos (B x)+C \cos (D t)\), where \(x\) is displacement and \(t\) is time. The dimension of \(\left(\frac{D}{B}\right)\) is same as that ofTS EAMCET 2016 Easy
- Match the following
List-I List-II (1) Burning candle (ii) Continuous spectrum (2) Sodium vapour (i) Line spectrum (3) Bunsen flame (iii) Band spectrum (4) Dark lines in solar spectrum (iv) Absorption spectrum TS EAMCET 2007 Medium - In the adiabatic compression, the decrease in volume is associated withTS EAMCET 2008 Easy