A bullet of mass 10 g moving with 300m//...

A bullet of mass 10 g moving with `300m//s` hits a block of ice of mass 5 kg and drops dead. The velocity of ice is

`50cm//s`

`60cm//s`

`40cm//s`

`200cm//s`

Text Solution

Verified by Experts

The correct Answer is:

Applyign law conservation of linear momentum i.e.
`m_(1)u_(1)+m_(2)u_(2)=m_(1)v_(1)+m_(2)v_(2)`
`10^(-2)xx300+5xx0=10^(-2)xx0+5v_(2)`
`5v_(2)=3`
`v_(2)=3/5m//s =60cm//s`

Topper's Solved these Questions

PRACTICE SET 07
MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise PAPER 1( PHYSICS & CHEMISTRY)|50 Videos
PRACTICE SET 09
MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise PAPER 1 (PHYSICS & CHEMISTRY)|50 Videos

Similar Questions

Explore conceptually related problems

A bullet weighing 10 g and moving with a velocity 300 m/s strikes a 5 kg block of ice and drop dead. The ice block is kept on smooth surface. The speed of the block after the the collision is

A bullet of mass 10 g moving horizontally with a speed of 400 m//s a block of mass 390 g and remains in it. The block slides 10 m on rough surface before coming to rest. The friction coefficient is

A bullet of mass 50g moving with velocity 600m//s hits block of mass 1.0kg placed on a rough horizontal ground and comes out of the block with a velocity of 400m//s . The coefficient of friction between the block and the ground is 0.25 . Neglect loss of mass of the block as the bullet pierces through it. (a) In spite of the fact that friction acts a an external force, can you apply principle of conservation of momentum during interaction of the ullet with the block? (b) Find velocity of the block immediately after the bullet pierces through it. (c)FInd the distance the block will travel before it stops.

A bullet of mass 10 g moving with a speed of 20 m//s hits an ice block of mass 990 g kept on a frictionless floor and gets stuck in it. How much ice will melt if 50% of the lost kinetic energy goes to ice? (Temperature of ice block = 0^@C .)

A bullet of mass 20 g and moving with 600 m/s collides with a block of mass 4 kg hanging with the string. What is the velocity of bullet when it comes out of block, if block rises to height 0.2 m after collision?

A bullet of mass 10 g moving with a speed of 20 m/s hits an ice block of mass 990 g kept on a frictionless floor and gets stuck in it. How much ice will melt if 50\% of the lost KE goes to ice? (initial temperature of the ice block and bullet = 0^(@)C )

A bullet weighing 10 gm and moving at 300 m/s strikes a 5 kg ice and drops dead. The ice block is placed on a frictionless level surface. The speed of the block after the collision, is

A bullet of mass 10 g is fired with a velocity of 100 m/s from a rifle of mass 2.5 kg, the recoil velocity of the rifle is

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-PRACTICE SET 08-PAPER 1 OBJECTIVE TYPE

A person is sitting in a lift acceleration upwards, Measured weight of...
Text Solution
|
A proton is moving in uniform magnetic field B in a circular path of r...
Text Solution
|
A bullet of mass 10 g moving with 300m//s hits a block of ice of mass ...
Text Solution
|
A North pole of 40A-m is palced 20 cm apart from a South pole of 80A-m...
Text Solution
|
Wires A and B are made from the same material. A has twice the diamete...
Text Solution
|
A point source of light is placed 4 m below the surface of water of re...
Text Solution
|
A 100V, aC source of frequency of 500Hz is connected to an L-C-LR circ...
Text Solution
|
In an ideal transformer, the voltage and current in the primary are 20...
Text Solution
|
The energy difference between the first two levels of hydrogen atom is...
Text Solution
|
A steel wire 0.5 m long has a total mass of 0.02 kg and is stretched w...
Text Solution
|
Energy E of a hydrogen atom with principle quantum number n is given b...
Text Solution
|
A convex lens has its radi of curvature equal. The focal length of the...
Text Solution
|
An organ pipe closed at one end has fundamental frequency of 1500hz. T...
Text Solution
|
Assuming that the silicon diode (having negligible resistance) the cur...
Text Solution
|
A sinusoidal voltage of rms value 100V is connected to an ideal functi...
Text Solution
|
A stationary wave y=0.4"sin"(2pi)/40 cos 100pit is produced in string ...
Text Solution
|
A sonometer wire resonates with a given tuning fork forming a standing...
Text Solution
|
If a ladder weighting 250 N is placed against a smooth vertical wall h...
Text Solution
|
Four waves A, B, C, D of frequencies 6 MHz. 8 MHz, 10 MHz and 4 MHz re...
Text Solution
|
Two identical capacitors, have the same capacitance C. One of them is ...
Text Solution
|