At high altitude , a body explodes at re...

At high altitude , a body explodes at rest into two equal fragments with one fragment receiving horizontal velocity of `10 m//s`. Time taken by the two radius vectors connecting of explosion to fragments to make `90^(@)` is

10 s

4 s

2 s

1 s

Text Solution

Verified by Experts

The correct Answer is:

`t=(sqrt(u_(1)u_(2)))/(g)`.

Topper's Solved these Questions

WORK POWER AND ENERGY
NARAYNA|Exercise NCERT (Based Questions)|45 Videos
WORK POWER AND ENERGY
NARAYNA|Exercise Level-V (Single Answer)|24 Videos
WORK POWER AND ENERGY
NARAYNA|Exercise Level- II (C.W)|68 Videos
WORK , ENERGY & POWER
NARAYNA|Exercise EXERCISE IV|43 Videos

Similar Questions

Explore conceptually related problems

At a certain height a body at rest explodes into two equal fragments with one fragment receiving a horizontal velocity of 10ms^(-1) The time interval after the explosion for which the velocity vectors of the two fragments become perpendicular to each other is (g=10ms^(-2))

A bomb explodes in air in two equal fragments. If one of the fragments is moving vertically upwards with velocity v_(0) , then the other fragment is moving-

At a certain height a shell at rest explodes into two equal fragments one of the fragments receives a horizontal velocity u .The time interval after which the velocity vectors will be inclined at 120^(@) to each other is

A bomb explodes in mid air into two equal fragments . What is the angle between their directions of motion ?

A bomb is rest at the summit of a cliff breaks into two equal fragments.One of the fragments attains a horizontal velocity of 20sqrt3 ms^(-1) .The horizontal distance between the two fragments, when their displacement vectors is inclined at 60^(@) relative to each other is (g=10ms^(-2))

A shell of mass 2 kg and moving at a rate of 4m/s suddenly explodes into two equal fragments. The fragments go in directions inclined with the original line of motion with equal velocities. If the explosion imparts 48 J of translational kinetic energy to the fragments divided equall, the velocity (magnitude and direction both) of each fragment:

NARAYNA-WORK POWER AND ENERGY-Level- III (C.W)

Mass of the bob of a simple pendulum of length L is m. If the bob is ...
Text Solution
|
A bob of mas M is suspended by a massless string of length L. The hor...
Text Solution
|
A simple pendulum is oscillating with an angular amplitude of 90^(@) a...
Text Solution
|
A block of wood of mass 3M is suspended by a string of length (10)/(3...
Text Solution
|
A wooden block of mass 10 gm is dropped from the top of a cliff 100 m ...
Text Solution
|
A particle of mass m has a velocity -v(0) i, while a second particle o...
Text Solution
|
At high altitude , a body explodes at rest into two equal fragments wi...
Text Solution
|
A test tube of mass 20 gm is filled with a gas and fitted with a stopp...
Text Solution
|
Two bodies move towards each other and collide inelastically. The velo...
Text Solution
|
Three particles A, B and C of equal mass move with equal speed V along...
Text Solution
|
A moving sphere P collides another sphere Q at rest. If the collision ...
Text Solution
|
A particle strikes a horizontal frictionless floor with a speed 'u' at...
Text Solution
|
Two sphere A and B of equal masses lie on the smooth horizontal circul...
Text Solution
|
A ball is thrown at an angle of incidence 'theta' on a horizontal plan...
Text Solution
|
Consider the collision depicted in Figure, to be between two billiard ...
Text Solution
|
A projectile is fixed on a horizontal ground. Coefficient of restituti...
Text Solution
|
A wall moving with velocity 2 cms^(-1) towards the ball and ball is mo...
Text Solution
|
A body A moves towards a wall with velocity V. The wall also moves tow...
Text Solution
|
A sphere A of mass m moving with a velocity hits another stationary s...
Text Solution
|
A ball A of mass 3 m is placed at a distance d from the wall on a smoo...
Text Solution
|