MHT CET · Physics · Center of Mass Momentum and Collision
There is head-on elastic collision between the two particles moving in the same direction with speeds \(5 \mathrm{~m} / \mathrm{s}\) and \(3 \mathrm{~m} / \mathrm{s}\) respectively. After collision, the velocity of the first particle becomes \(4 \mathrm{~m} / \mathrm{s}\) in the same direction. The velocity of the second particle should be
- A \(6 \mathrm{~m} / \mathrm{s}\) in the same direction.
- B \(4 \mathrm{~m} / \mathrm{s}\) in the same direction.
- C \(2 \mathrm{~m} / \mathrm{s}\) in the opposite direction.
- D \(3 \mathrm{~m} / \mathrm{s}\) in the same direction.
Answer & Solution
Correct Answer
(A) \(6 \mathrm{~m} / \mathrm{s}\) in the same direction.
Step-by-step Solution
Detailed explanation
\(u_1 - u_2 = v_2 - v_1\) \(5 - 3 = v_2 - 4\)
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 Fraunhofer diffraction pattern due to a single slit of width \(0 \cdot 3 \mathrm{~mm}\) is obtained
on a screen placed at a distance of \(3 \mathrm{~m}\) from the slit. The first minima lie at \(5 \cdot 5 \mathrm{~mm}\)
on either side of the central maximum on the screen. The wavelength of light used
isMHT CET 2020 Easy - The acceleration due to gravity on moon is \(\frac{1^{\text {th }}}{6}\) times the acceleration due to gravity on earth. If the ratio of the density of earth ' \(e_e\) ' to the density of moon ' \(e_m\) ' is \(\frac{5}{3}\) then the radius of moon ' \(R_m\) ' in terms of the radius of earth ' \(R_e\) ' isMHT CET 2022 Medium
- Two, point charges \(+3 \mu \mathrm{C}\) and \(+8 \mu \mathrm{C}\) repel each other with a force of \(40 \mathrm{~N}\). If a charge of \(-5 \mu \mathrm{C}\) is added to each of them, then force between them will becomeMHT CET 2021 Easy
- The self induction (L) produced by solenoid of length ' \(l\) ' having ' \(N\) ' number of turns and cross sectional area ' \(\mathrm{A}\) ' is given by the formula ( \(\phi=\) magnetic flux, \(\mu_0,=\) permeability of vacuum)MHT CET 2023 Medium
- The relative angular speed of hour hand and minute hand of a clock is (in rad/s)MHT CET 2022 Medium
- An electron in the hydrogen atom jumps from the first excited state'to the ground state. What will be the percentage change in the speed of electron?MHT CET 2023 Easy
More PYQs from MHT CET
- Two light waves of intensities and having same frequency pass through the same medium at a time in the same direction and interfere. The sum of the minimum and maximum intensities isMHT CET 2018 Medium
- The perimeter of a triangle is \(10 \mathrm{~cm}\). If one of its side is \(4 \mathrm{~cm}\), then remaining sides of the triangle, when area of triangle is maximum areMHT CET 2020 Medium
- Find out the total number of electrons present in 3.2 g methane?MHT CET 2025 Medium
- A charged particle is moving in a uniform magnetic field in a circular path with radius ' \(R\) '. When the energy of the particle is doubled, then the new radius will beMHT CET 2024 Medium
- A mass ' \(M\) ' moving with velocity ' \(\mathrm{V}\) ' along \(\mathrm{x}\)-axis collides and sticks to another mass \(2 \mathrm{M}\) which is moving along \(\mathrm{Y}\)-axis with velocity ' \(3 \mathrm{~V}\) '. The velocity of the combination after collision isMHT CET 2023 Medium
- The solubility product of \(\mathrm{PbCl}_2\) at \(298 \mathrm{~K}\) is \(3.2 \times 10^{-5}\). What is its solubility in mol dm\({ }^{-3}\) ?MHT CET 2023 Medium