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Standard XII

Physics

Block on a Block Problems

a point parti...

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a point particle of mass m moves along the uniformly rough track PQR the cofficient of friction between the particle and the rough track equals μ.the particle is released from rest ,from the point p and it come to rest at a point R the energies lost by the ball over tthe parts PQ and QR of the track are equal to each other and no energy is lost when particle change direction from PQ to qR the values of the cofficient of friction μ and dis†an ce

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Q. A point particle of mass

m

, moves along the uniformly rough

P Q R

as shown in the figure. The coefficient of friction, between the particle and the rough track equals . The particle is released, from the point

P

and it comes to rest at a point

R

. The energies, lost by the ball, over the parts,

P Q

and

Q R

of the track, are equal to each other, and no energy is lost when particle changes direction from

P Q

Q R

. The values of the coefficient of friction and the distance

x (= Q R)

, are respectively close to.

Q. A point particle of mass

m

, moves along the uniformly rough track

P Q R

as shown in the figure. The coefficient of friction, between the particle and the rough track equals

μ

. The particle is released from rest, from the point

P

and it comes to rest at a point

R

. The energies, lost by the ball, over the parts,

P Q

and

Q R

of the track, are equal to each other. and no energy is lost when particle changes direction from

P Q

Q R

. The values of the coefficient of friction

μ

and the distance

x (Q R)

are, respectively close to

Q. A point particle of mass

m

, moves along the uniformly rough track

P Q R

as shown in the figure. The coefficient of friction, between the particle and the rough track equals

μ

. The particle is released, from rest, from the point

P

and it comes to rest at a point

R

. The energies, lost by the ball, over the parts,

P Q

and

Q R

, of the track, are equal to each other, and no energy is lost when the particle changes direction from

P Q

Q R

. The values of the coefficient of friction

μ

and the distance

x (= Q R)

, are respectively close to

Q. A point particle of mass

m

moves along the uniformly rough track PQR as shown in the figure. The coefficient of friction between the particle and the rough track equals

μ

. The particle is released from rest from the point P and it comes to rest at a point R. The energies lost by the ball over the parts PQ and QR of the track are equal to each other and no energy is lost when particle changes direction from PQ to QR. The distance

x

(=QR) is equal to

Q. A point particle of mass

m

moves along the uniformly rough track PQR as shown in the figure. The coefficient of friction between the particle and the rough track equals

μ

x

(=QR) is equal to

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