TS EAMCET · Physics · Motion In One Dimension
An object is thrown vertically upward with a speed of \(30 \mathrm{~m} / \mathrm{s}\). The velocity of the object half-a-second before it reaches the maximum height is
- A \(4.9 \mathrm{~m} / \mathrm{s}\)
- B \(9.8 \mathrm{~m} / \mathrm{s}\)
- C \(19.6 \mathrm{~m} / \mathrm{s}\)
- D \(25.1 \mathrm{~m} / \mathrm{s}\)
Answer & Solution
Correct Answer
(A) \(4.9 \mathrm{~m} / \mathrm{s}\)
Step-by-step Solution
Detailed explanation
According to the question, Velocity of an object half a second before maximum height = Velocity of an object half a second after maximum height (return journey) \[ =0+g t=0+9.8 \times \frac{1}{2}=4.9 \mathrm{~m} / \mathrm{s} \]
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
- In \(C R\)-circuit the growth of charge on the capacitor isTS EAMCET 2020 Easy
- If you are using eye glasses of power 2D, your near point isTS EAMCET 2024 Easy
- A vehicle starts moving in a straight line with an acceleration, \(a=4 \mathrm{~m} / \mathrm{s}^2\), with initial velocity equal to zero. After accelerating for time \(t_1\), the vehicle moves uniformly and for time \(t_2\), the vehicle finally decelerates for time \(t_1\) eventually coming to a stop. The total time taken during the motion is \(10 \mathrm{~s}\) and the average velocity during the motion is \(5.1 \mathrm{~m} / \mathrm{s}\). The time taken by the vehicle during acceleration isTS EAMCET 2018 Medium
- A particle moves in a circle with speed \(v\) varying with time as \(v(t)=2 t\). The total acceleration of the particle after it completes 2 rounds of cycle isTS EAMCET 2018 Medium
- An alternating voltage \(\varepsilon=30 \sin 200 t\) (in volts) is applied to the circuit below. The amplitude of the current through the circuit is
TS EAMCET 2020 Easy - A cobalt ( \(\mathrm{Co})\) plate is placed at a distance of \(1 \mathrm{~m}\) from a point source of power \(1 \mathrm{~W}\). Assume a circular area of the plate of radius, \(r=1 \mathrm{~A}\) is exposed to the radiation and ejects photo electrons. The light energy is considered to be spread uniformly and the work function of cobalt is \(5 \mathrm{eV}\). The minimum time the target should be exposed to the light source to eject a photoelectron (Assuming no reflection losses) isTS EAMCET 2019 Easy
More PYQs from TS EAMCET
- An alternating current is given by The R.M.S. current in amperes is,TS EAMCET 2021 Easy
- The Boolean expression of the circuit given in figure is
TS EAMCET 2020 Easy - A sonometer wire has a length of \(114 \mathrm{~cm}\), between two fixed ends. Where should two bridges be placed so as to divide the wire into three segments (in \(\mathrm{cm}\) ) whose fundamental frequencies are in the ratio \(1: 3: 4\) ?TS EAMCET 2010 Medium
- The force required to move a body up a rough inclined plane is double the force required to prevent the body from sliding down the plane. The coefficient of friction, when the angle of inclination of the plane is \(60^{\circ}\) isTS EAMCET 2014 Hard
- The heat energy required convert \(10 \mathrm{~kg}\) of ice at \(-10^{\circ} \mathrm{C}\) into water at \(0^{\circ} \mathrm{C}\) is (specific heat capacity of ice \(=0.5 \mathrm{cal}\) \(\mathrm{g}^{-1}\) and latent heat of fusion of ice \(=80 \mathrm{cal} \mathrm{g}^{-1}\) )TS EAMCET 2023 Medium
- The efficiency of a bulb of power 60 W is \(16 \%\). The peak value of the electric field produced by the electromagnetic radiation from the bulb at a distance of 2 m from the bulb is \(\left(\frac{1}{4 \pi \epsilon_0}=9 \times 10^9 \mathrm{Nm}^2 \mathrm{C}^{-2}\right)\)TS EAMCET 2024 Hard