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

Byju's Answer

Standard X

Physics

Potential Energy of an Object at a Height

Two point mas...

Question

Two point mass m $_{1}$ and m $_{2}$ are placed at point A and B respectively as shown in figure.Point A is the centre of hollow sphere of uniformly distributed total mass m $_{3}$ . Consider only gravitational interaction between all masses and neglect other gravitational forces. Select the incorrect alternative.

Hollow sphere and point mass m

_{1}

moves with same acceleration.

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

_{1}

and m

_{2}

moves with same acceleration.

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

Net force on m

_{1}

is non-zero

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

Net force on hollow sphere and point mass m

_{1}

as a system is equal to force experienced by point mass m

_{2}

in magnitude

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

Open in App

Solution

The correct option is B m $_{1}$ and m $_{2}$ moves with same acceleration.
The gravitational pull on $m_{1}$ is due to $m_{2}$ only. But that on $m_{2}$ is due to $m_{1} + m_{3}$ .
So the acceleration on $m_{1}$ is less than that of $m_{2}$ .
So wrong alternative is B.

Suggest Corrections

Similar questions

Q. A point mass

m

is released from rest at a distance of

3 R

from the centre of a thin-walled hollow sphere of radius

R

and mass

M

as shown. The hollow sphere is fixed in position and the only force on the point ass is the gravitational attraction of the hollow sphere. There is a very small hole in the hollow sphere through which the point mass falls as shown. The velocity of a point mass when it passes through point

P

at a distance

R / 2

from the centre of the sphere is

Q. Gravitational force between a point mass m and M separated by a distance F. Now if a point mass 2m is placed next to m in contact with it, the force on M due to m and the total force on M are ?

Q. Two point masses

M

and

3 M

are placed at a distance

L

apart. Another point mass

m

is placed in between on the line joining them so that the net gravitational force acting on it due to masses

M

and

3 M

is zero. The magnitude of gravitational force acting due to mass

M

on mass

m

will be

Q. Assertion :The force of gravitation between a sphere and a rod of mass

M_{2}

= (G M_{1} M_{2}) / r

. Reason: Newton's law of gravitation holds correct for point masses.

Q. A solid sphere of mass

m

and radius

r

is placed inside a hollow thin spherical shell of mass

M

and radius

R

as shown in figure. A particle of mass

m^{^{'}}

is placed on the line joining the two centres at a distance

x

from the point of contact of the sphere and shell. Find the magnitude of force

(

gravitational

)

on this particle when

2 r < x < 2 R

Join BYJU'S Learning Program

Two point mass m1 and m2 are placed at point A and B respectively as shown in figure.Point A is the centre of hollow sphere of uniformly distributed total mass m3. Consider only gravitational interaction between all masses and neglect other gravitational forces. Select the incorrect alternative.

The correct option is B m1 and m2 moves with same acceleration.The gravitational pull on m1 is due to m2 only. But that on m2 is due to m1+m3.So the acceleration on m1 is less than that of m2.So wrong alternative is B.

The correct option is B m $_{1}$ and m $_{2}$ moves with same acceleration.
The gravitational pull on $m_{1}$ is due to $m_{2}$ only. But that on $m_{2}$ is due to $m_{1} + m_{3}$ .
So the acceleration on $m_{1}$ is less than that of $m_{2}$ .
So wrong alternative is B.