When a bullet is fired a target, its vel...

When a bullet is fired a target, its velocity dwecreases by half after penetrating 30 cm into it. The additional thickness it will penetrate before coming to rest is

10 cm

30 cm

40 cm

60 cm

Text Solution

Verified by Experts

The correct Answer is:

`(1)`

`1/2m[(u^(2))-(u^(2))/2] = R(3)`
`1/2(mu^(2)) = R(30 + X)`
Calculate X

Topper's Solved these Questions

WORK , ENERGY & POWER
NARAYNA|Exercise EXERCISE -III|54 Videos
WORK , ENERGY & POWER
NARAYNA|Exercise EXERCISE IV|43 Videos
WORK , ENERGY & POWER
NARAYNA|Exercise EXERCISE -II (C.W)|75 Videos
WAVES
NARAYNA|Exercise Exercise-IV|56 Videos
WORK POWER AND ENERGY
NARAYNA|Exercise Level-VI (Integer)|12 Videos

Similar Questions

Explore conceptually related problems

.A bullet when fired at a target has its velocity decreased to 50% after penetrating 30cm into it.Then the additional thickness it will penetrate in cm before coming to rest is

A bullet is fired at a target with a velocity v. It is found that its velocity decreases from v to v//2 when it penetrates 30 cm in the target. Through what thickness it will penetrate further in the targer, before coming to rest?

A bullet fired into a fixed target loses half of its velocity after penetrating 3 cm . How much further it will penetrate before coming to rest assuming that it faces constant resistance to motion?

A bullet fired into a fixed target loses half of its velocity after penetrating 3cm. How much further it will penetrate before coming to rest assuming that it faces constant resistance to motion?

A bullet fired into a fixed target loses half of its velocity after penetrating 1 cm . How much further it will penetrate before coming to rest, assuming that it faces constant resistance to motion

A body loses half of its velocity on penetrating 6 cm in wooden block. How much will it penetrate more before coming to rest ?

If a body looses half of its velocity on penetrating 3 cm in a wooden block, then how much will it penetrate more before coming to rest?

A bullet on penetrating 30 cm into its target loses its velocity by 50%. What additional distanee will it penetrate into the target before it comes to rest?

NARAYNA-WORK , ENERGY & POWER -EXERCISE -II (H.W)

The potential energy of a certain spring when stretched through a dist...
Text Solution
|
Match the following {: ( "Column I", " Column II"),( "(A)Work", " (p...
Text Solution
|
When a bullet is fired a target, its velocity dwecreases by half after...
Text Solution
|
A bullet of mass 10 gm is fired horizontally with a velocity 1000 ms^(...
Text Solution
|
A block of mass 5 kg is initially at rest on a rough horizontal surfac...
Text Solution
|
A block of mass m = 25 kg on a smooth horizontal surface with a veloci...
Text Solution
|
A body freely falls from a certain height onto the ground in a time 't...
Text Solution
|
The potential energy function for the force between two atoms in a dia...
Text Solution
|
The variation of potential energy U of a body moving along x - axis va...
Text Solution
|
The PE of a 2 kg particle, free to move along x-axis is given by V(x)=...
Text Solution
|
Figure given below shows the variation of potential energy function U(...
Text Solution
|
A ball is projected vertically down with an initial velocity from a h...
Text Solution
|
A freely falling body takes 4s to reach the ground. One second after r...
Text Solution
|
Two identical blocks A and B , each of mass m resting on smooth floor ...
Text Solution
|
A body is thrown vertically up with certain initial velocity, the pote...
Text Solution
|
A body is thrown vertically upward from a point A 125 m above the grou...
Text Solution
|
A body of mass 10 kg dropped from a height 20 m, acquires a velocity o...
Text Solution
|
A body slides down a fixed curved track that is one quadrant of a circ...
Text Solution
|
AB is a frictionless inclined surface making an angle of 30^@ with hor...
Text Solution
|
A ball of mass2 kg and another of mass 4 kg are dropped together from ...
Text Solution
|