A body of mass 2 kg moving with a velocity of 3 m/sec collides head on with a

Sail E0 Webinar

Question

A body of mass 2 kg moving with a velocity of 3 m/sec collides head on with a body of mass 1 kg moving in opposite direction with a velocity of 4 m/sec. After collision, two bodies stick together and move with a common velocity which in m/sec is equal to

Options:

A .

\frac{1}{4}

B .

\frac{1}{3}

C .

\frac{2}{3}

D .

\frac{3}{4}

Answer: Option C
:
C

$m_{1} v_{1} - m_{2} v_{2} = (m_{1} + m_{2}) v$

$\Rightarrow (2 \times 3) - (1 \times 4) = (2 + 1) v \Rightarrow v = \frac{2}{3} m / s$

Was this answer helpful ?

Next Question

Submit Solution

More Questions on This Topic :

Question 1. The coefficient of restitution 'e' for a perfectly elastic collision is ....

Question 2. A steel ball falls from a height h on a floor for which the coefficient of restitution is e. The height attained by th....The height attained by the ball after two rebounds is

Question 3. The bob A of a pendulum released from a height 'h' hits head-on another bob B of the same mass of an identical pendulum ....result of this collision? Assume the collision to be elastic

Question 4. A ball P of mass 2 kg undergoes an elastic collision with another ball Q initially kept at rest. After the collision, ....of its original speed. What is the mass of ball Q?

Question 5. A ball of mass 'm' moving horizontally at a speed 'v' collides with the bob of a simple pendulum a....bob of the pendulum will rise to a height of

Question 6. Two balls marked 1 and 2 of the same mass m and a third ball marked 3 of mass M are arranged over a smooth horizontal s....<m, the number of collisions between the balls will be

Question 7. A neutron moving at a speed 'v' undergoes a head-on elastic collision with a nucleus of mass number 'A&....kinetic energies of the neutron after and before collision is

Question 8. A body of mass 5 kg is moving along the x-axis with a velocity 2ms−1. Another body of mass 10 kg is moving....stick together, then the final velocity of the combined mass is

Question 9. A body of mass 'm' moving with a velocity 'v' in the x-direction collides with a body of mass 'M' moving with a velocity....in the y-direction. They stick together during a collision. Then

Question 10. A body of mass 5 kg explodes at rest into three fragments with masses in the ratio 1 : 1 : 3. The fragments with equal m....21 m/s. The velocity of the heaviest fragment will be

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

Chapter 3.1 : Overview of Finance & Accounts Department Chapter 3 : Finance & Accounts SAIL E0 - GFM 2024

Chapter 2.1 : Overview Chapter 2 : Materials Management SAIL E0 - GFM 2024

Chapter 1.1 : Personnel Functions- An overview Chapter 1 : Personnel Management SAIL E0 - GFM 2024

GPOE / GPA Combined 1 Free CBT Mock Test SAIL E0 2024

CBT Mixed Test 1 GPOE/GPA SAIL E0 2024