मराठी
तामिळनाडू बोर्ड ऑफ सेकेंडरी एज्युकेशनएचएससी विज्ञान इयत्ता ११

Explain the characteristics of elastic and inelastic collision. - Physics

Advertisements
Advertisements

प्रश्न

Explain the characteristics of elastic and inelastic collision.

टीपा लिहा
Advertisements

उत्तर

  • In a collision, the total K.E of the bodies before the collision is equal to the total K.E. of the bodies after the collision, then it is an elastic collision.
    Total K.E. before collision = Total K.E. after collision
  • Inelastic collision:
    In a collision, the total K.E. of the bodies before the collision is not equal to the total K.E. after collision then it is called inelastic collision Even though K.E. is not conserved but total energy is conserved. After the collision of the two colliding bodies stick together such collision is called as perfectly inelastic a plastic collision.
shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Work, Energy and Power - Evaluation [पृष्ठ २०५]

APPEARS IN

सामाचीर कलवी Physics - Volume 1 and 2 [English] Class 11 TN Board
पाठ 4 Work, Energy and Power
Evaluation | Q II. 4. | पृष्ठ २०५

संबंधित प्रश्‍न

A bullet of mass 0.012 kg and horizontal speed 70 m s–1 strikes a block of wood of mass 0.4 kg and instantly comes to rest with respect to the block. The block is suspended from the ceiling by means of thin wires. Calculate the height to which the block rises. Also, estimate the amount of heat produced in the block.


Solve the following problem.

A ball of mass 100 g dropped on the ground from 5 m bounces repeatedly. During every bounce, 64% of the potential energy is converted into kinetic energy. Calculate the following:

  1. Coefficient of restitution.
  2. The speed with which the ball comes up from the ground after the third bounce.
  3. The impulse was given by the ball to the ground during this bounce.
  4. Average force exerted by the ground if this impact lasts for 250 ms.
  5. The average pressure exerted by the ball on the ground during this impact if the contact area of the ball is 0.5 cm2.

Arrive at an expression for elastic collision in one dimension and discuss various cases.


In inelastic collision, ____________.


A ball of mass m, moving with a speed 2v0, collides inelastically (e > 0) with an identical ball at rest. Show that for a general collision, the angle between the two velocities of scattered balls is less than 90°.


The bob A of a pendulum released from horizontal to the vertical hits another bob B of the same mass at rest on a table as shown in figure.


If the length of the pendulum is 1 m, calculate

  1. the height to which bob A will rise after collision.
  2. the speed with which bob B starts moving. Neglect the size of the bobs and assume the collision to be elastic.

A ball of mass 10 kg moving with a velocity of 10`sqrt3` ms–1 along the X-axis, hits another ball of mass 20 kg which is at rest. After collision, the first ball comes to rest and the second one disintegrates into two equal pieces. One of the pieces starts moving along Y-axis at a speed of 10 m/s. The second piece starts moving at a speed of 20 m/s at an angle θ (degree) with respect to the X-axis.

The configuration of pieces after the collision is shown in the figure.

The value of θ to the nearest integer is ______.


Answer carefully, with reason:

Is the total linear momentum conserved during the short time of an inelastic collision of two balls ?


What do the objects do "after collision"?


Which of the following real-life scenarios is the best example of a collision as defined in the source?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×