Home
Class 11
PHYSICS
A body, moving on a horizontal smooth pl...

A body, moving on a horizontal smooth plane with a velocity of `50 cm*s^(-1)`, collides elastically with another stationary body of the same mass. After collision, if velocity of the 1st body becomes `30 m*s^(-1)`, what is the velocity acquired by the 2nd ? Also show that the two bodies move at right angles to each other after collision.

Text Solution

Verified by Experts

The correct Answer is:
`40 cm*s^(-1)`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise ENTRANCE CORNER (Assertion-reason type)|7 Videos
  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise ENTRANCE CORNER (Multiple correct answers type)|2 Videos
  • WORK AND ENERGY

    CHHAYA PUBLICATION|Exercise PROBLEM SET -II|47 Videos
  • WBCHSE QUESTION PAPER -2019

    CHHAYA PUBLICATION|Exercise SECTION - II ( GROUP -D)|10 Videos

Similar Questions

Explore conceptually related problems

A body of mass m moving with velocity vecV collides elastically with another body B of same mass which is at rest. What will be the velocities of A and B after collision?

A particle of 1g moving with a velocity of 6 cm *s^(-1) collides elastically with a stationary particle of mass 2g , and is deflected throgh an angle of 90^@ . Find out (i) the velocity of the 1g particle , and

A body of mass in moving with a velocity u strikes elastically a stationary body of mass 2m. After 'the elastic collision 'the bodies move with velocities v and V respectively. Show that the body of mass m loses 8/9 part of its initial kinetic energy

A particle of 1g moving with a velocity of 6 cm *s^(-1) collides elastically with a stationary particle of mass 2g , and is deflected throgh an angle of 90^@ . Find out (ii) the magnitude and direction of the velocity of the 2g particle, after collision.

A body is thrown horizontally with velocity 122 m *s^(-1) from the top of a tower 122 m high . When and where does the body hit the ground ?

A body of mass m moving with a velocity u strikes elastically a stationary body of mass 2m . After the elastic collision the bodies move with velocities v and V respectively . Show that the body of mass m loses 8/9 part of its initial kinetic energy.

A body of mass m moving with velocity V along the X-axis, collides with another mass M moving with velocity v along the Y-axis. The masses coalesce after collision. Find the velocity and the direction of motion of the combined mass.

Calculate the net force acting on a body of mass 10 kg moving with a uniform velocity of 2 m/s ?

(2hati+hatj-hatk) N force is acting on a body of 10 kg mass. If the body is started moving from the rest, then after 20 sec. what will be its velocity?

A body during its free fall from a height H, hits an inclined plane at a height h in its path. Due to collision, direction of the velocity of the body becomes horizontal. What should be the value of h/H so that the body takes maximum time to reach the ground ?