You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Physics

Second Law of Motion

Three blocks ...

Question

Three blocks $A, B$ and $C$ are lying on a smooth horizontal surface, as shown in the figure. $A$ and $B$ have equal masses, $m$ while $C$ has mass $M$ . Block $A$ is given a brutal speed $v$ towards $B$ due to which it collides with $B$ perfectly inelastically. The combined mass collides with $C$ , also perfectly inelastically $\frac{5}{6} t h$ of the initial kinetic energy is lost in the whole process. What is the value of $\frac{M}{m}$ ?

4

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

5

No worries! We‘ve got your back. Try BYJU‘S free classes today!

3

No worries! We‘ve got your back. Try BYJU‘S free classes today!

2

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $4$

Suggest Corrections

Similar questions

Q. The masses of Blocks

A

B

and

C

are in the ratio

1 : 1 : 4

. Block

A

is given an initial velocity

v_{0}

towards

B

due to which it collides with

B

perfectly inelastically. The combined mass collide with

C

, also perfectly inelastically . If the loss in kinetic energy is

n

times the initial kinetic energy , then the value of

n

Q. Blocks of masses

m, 2 m, 4 m

and

8 m

are arranged in a line on a frictionless floor. Another block of mass

m,

moving with speed

v

along the same line (as shown) collides with mass

m

in a perfectly inelastic manner. All the subsequent collisions are also perfectly inelastic. By the time the last block of mass

8 m

starts moving, the total energy loss is

p %

of the original energy. The value of

p

is close to-

Q. Three blocks are placed on a smooth horizontal surface and lie on the same horizontal straight line. Block

1

and block

3

have mass

m

each and block

2

has mass

M (M > m)

. Block

2

and block

3

are initially stationary, while block

1

is initially moving towards block

2

with speed

v

as shown. Assume that all collisions are head-on and perfectly elastic. What value of

M / m

ensures that block

1

and block

3

have the same final speed?

Q. Block

A

with a kinetic energy of

500 J

collides with another block

B

of mass

10 kg

initially kept at rest. Assuming that the collision is perfectly elastic, what is the final speed of the block

B

Q. Three blocks A, B and C each of mass m are placed on a surface as shown in the fig. Blocks B and C are initially at rest. Block A is moving to the right with speed V It collides with block B and sticks to it The A-B combination collides elastically with block C. Which of the following statements is(are) true about the velocity of block B and C

Join BYJU'S Learning Program

The correct option is A 4

The correct option is A $4$