An explosion breaks a rock into three pa...

An explosion breaks a rock into three parts in a horizontal plane two of them go off at right angles to each other the first part of mass 1 kg moves with a speed of 12 m/s the second part of mass 2kg moves with a speed of 8 m/s and the third aprt flies off with a speed of 4 m/s calculate the mass of third part

3 kg

5 kg

7 kg

17kg

Text Solution

Verified by Experts

Topper's Solved these Questions

LAWS OF MOTION
SARAS PUBLICATION|Exercise EXAMPLE|16 Videos
OSCILLATIONS AND WAVES
SARAS PUBLICATION|Exercise EXAMPLE|40 Videos

Similar Questions

Explore conceptually related problems

An exploision blows a rock into three parts . Two parts go off at right angles to each other . These two are ,1kg first part moving with a velocity of 12ms^(-1) and 2kg second part moving with a velocity of 8 ms^(-1) . If the third part files off with a velocity of 4ms^(-1) . If the third part flies off with a velocity of 4ms^(-1) , its mass would be:

A cart A of mass 50 kg moving at a speed of 20 km/h hits a lighter cart B of mass 20 kg moving towards it at a speed of 10 km/h. The two carts cling to each other. Find the speed of the combined mass after the collision.

A wheel of radius 0.5m is moving with a speed of 12m/s. Find its angular speed ?

A bullet of mass 50 g moving with a speed of 300 ms^(-1) is brought to rest in 1 s . Find the impulse and the force .

What is the de Broglie wavelength of a. a bullet of mass 0.040 kg travelling at the speed of 1.0 km/s, b. a ball of mass 0.060 kg moving at a speed of 1.0 m/s, and c. a dust particle of mass 1.0xx10^(-9) kg drifting with a speed of 2.2 m/s ?

A particle of mass m moving with velocity v strikes a particle of mass 2m at rest and sticks to it. The speed of the combined mass is

A car of mass 1200 kg is traveling around a circular path of radius 300 m with a constant speed of 15m/s. calculate its angular momentum.

A bullet of mass 100 g is fired by a gun of 10 kg with a speed of 2000 m/s find recoil velocity of gun

SARAS PUBLICATION-MOTION OF SYSTEM OF PARTICLES AND RIGID BODY-EXAMPLE

When a mass is rotating in a plane about a fixed point, its angular mo...
Text Solution
|
A solid cylinder of mass 3 kg is rolling on a horizontal surface wih v...
Text Solution
|
An explosion breaks a rock into three parts in a horizontal plane two ...
Text Solution
|
A car is moving in a circular horizontal track of radius 10 m with a c...
Text Solution
|
A particle with total energy E is moving in a potential energy region ...
Text Solution
|
Two discs are rotating about their axes, normal to the discs and pass...
Text Solution
|
A charge ‘q’ is placed at centre of the line joining two equal charg...
Text Solution
|
A particle of unit mass undergoes one -dimensional motion such that it...
Text Solution
|
A radiation of energy E falss normally on a perfectly reflecting surfa...
Text Solution
|
Three identical spherical shells, each of mass m and radius r are plac...
Text Solution
|
If vectors vecA=cos omegat hati+sin omegat hatjand vecB=cos (omegat)/2...
Text Solution
|
A satellite S is moving in an elliptical orbit around the Earth. The m...
Text Solution
|
The position vector of a particle vecR as a function of time is given ...
Text Solution
|
From a disc of radius R a mass M, a circular hole of diameter R, whose...
Text Solution
|
A uniform circular disc of radius 50 cm at is free to turn about an ax...
Text Solution
|
A bar magnet is hung by a thin cotton thread in a unifrom horizontal m...
Text Solution
|
Two rotating bodies A and B of masses mand 2m with moments of inertia ...
Text Solution
|
A light rod of length has two masses m1 and m2 attached to its two end...
Text Solution
|
Consider a drop of rain water having mass 1 g falling from a height of...
Text Solution
|
Consider a drop of rain water having mass 1 g falling from a height of...
Text Solution
|