371748 A soccer ball is travelling at a velocity \(20 \mathrm{~ms}^{-1}\) due south. At the end of its travel, it moves with a velocity \(2 \mathrm{~ms}^{-1}\) due south. If the change in the linear momentum of the ball is \(18 \mathrm{kgms}^{-1}\) due north, then the mass of the ball is

371749 A body is acted on by a force given by \(F=(15+\) \(3 t^{2}\) ) N. The impulse received by the body during the first \(\mathbf{2}\) seconds is

371750 Assertion: Mass is a measure of inertia of the body in linear motion.
Reason: Greater the mass, greater is the force required to change its state of rest or of uniform motion.

371751 Assertion: When the lift moves with uniform velocity the man in the lift will feel weightlessness.
Reason: In downward accelerated motion of lift, apparent weight of a body increases.

371752 An object with mass \(5 \mathrm{~kg}\) is acted upon by a force, \(F=(-3 \hat{\mathbf{i}}+4 \hat{\mathbf{j}}) \mathbf{N}\). If its initial velocity at \(t=\) 0 is \(v=(3 \hat{i}+12 \hat{j}) \mathrm{m} / \mathrm{s}\), the time at which it will just have a velocity along \(y\)-axis is :

371748 A soccer ball is travelling at a velocity \(20 \mathrm{~ms}^{-1}\) due south. At the end of its travel, it moves with a velocity \(2 \mathrm{~ms}^{-1}\) due south. If the change in the linear momentum of the ball is \(18 \mathrm{kgms}^{-1}\) due north, then the mass of the ball is

371749 A body is acted on by a force given by \(F=(15+\) \(3 t^{2}\) ) N. The impulse received by the body during the first \(\mathbf{2}\) seconds is

371750 Assertion: Mass is a measure of inertia of the body in linear motion.
Reason: Greater the mass, greater is the force required to change its state of rest or of uniform motion.

371751 Assertion: When the lift moves with uniform velocity the man in the lift will feel weightlessness.
Reason: In downward accelerated motion of lift, apparent weight of a body increases.

371752 An object with mass \(5 \mathrm{~kg}\) is acted upon by a force, \(F=(-3 \hat{\mathbf{i}}+4 \hat{\mathbf{j}}) \mathbf{N}\). If its initial velocity at \(t=\) 0 is \(v=(3 \hat{i}+12 \hat{j}) \mathrm{m} / \mathrm{s}\), the time at which it will just have a velocity along \(y\)-axis is :

371748 A soccer ball is travelling at a velocity \(20 \mathrm{~ms}^{-1}\) due south. At the end of its travel, it moves with a velocity \(2 \mathrm{~ms}^{-1}\) due south. If the change in the linear momentum of the ball is \(18 \mathrm{kgms}^{-1}\) due north, then the mass of the ball is

371749 A body is acted on by a force given by \(F=(15+\) \(3 t^{2}\) ) N. The impulse received by the body during the first \(\mathbf{2}\) seconds is

371750 Assertion: Mass is a measure of inertia of the body in linear motion.
Reason: Greater the mass, greater is the force required to change its state of rest or of uniform motion.

371751 Assertion: When the lift moves with uniform velocity the man in the lift will feel weightlessness.
Reason: In downward accelerated motion of lift, apparent weight of a body increases.

371752 An object with mass \(5 \mathrm{~kg}\) is acted upon by a force, \(F=(-3 \hat{\mathbf{i}}+4 \hat{\mathbf{j}}) \mathbf{N}\). If its initial velocity at \(t=\) 0 is \(v=(3 \hat{i}+12 \hat{j}) \mathrm{m} / \mathrm{s}\), the time at which it will just have a velocity along \(y\)-axis is :

371748 A soccer ball is travelling at a velocity \(20 \mathrm{~ms}^{-1}\) due south. At the end of its travel, it moves with a velocity \(2 \mathrm{~ms}^{-1}\) due south. If the change in the linear momentum of the ball is \(18 \mathrm{kgms}^{-1}\) due north, then the mass of the ball is

371749 A body is acted on by a force given by \(F=(15+\) \(3 t^{2}\) ) N. The impulse received by the body during the first \(\mathbf{2}\) seconds is

371750 Assertion: Mass is a measure of inertia of the body in linear motion.
Reason: Greater the mass, greater is the force required to change its state of rest or of uniform motion.

371751 Assertion: When the lift moves with uniform velocity the man in the lift will feel weightlessness.
Reason: In downward accelerated motion of lift, apparent weight of a body increases.

371752 An object with mass \(5 \mathrm{~kg}\) is acted upon by a force, \(F=(-3 \hat{\mathbf{i}}+4 \hat{\mathbf{j}}) \mathbf{N}\). If its initial velocity at \(t=\) 0 is \(v=(3 \hat{i}+12 \hat{j}) \mathrm{m} / \mathrm{s}\), the time at which it will just have a velocity along \(y\)-axis is :

371748 A soccer ball is travelling at a velocity \(20 \mathrm{~ms}^{-1}\) due south. At the end of its travel, it moves with a velocity \(2 \mathrm{~ms}^{-1}\) due south. If the change in the linear momentum of the ball is \(18 \mathrm{kgms}^{-1}\) due north, then the mass of the ball is

371749 A body is acted on by a force given by \(F=(15+\) \(3 t^{2}\) ) N. The impulse received by the body during the first \(\mathbf{2}\) seconds is

371750 Assertion: Mass is a measure of inertia of the body in linear motion.
Reason: Greater the mass, greater is the force required to change its state of rest or of uniform motion.

371751 Assertion: When the lift moves with uniform velocity the man in the lift will feel weightlessness.
Reason: In downward accelerated motion of lift, apparent weight of a body increases.

371752 An object with mass \(5 \mathrm{~kg}\) is acted upon by a force, \(F=(-3 \hat{\mathbf{i}}+4 \hat{\mathbf{j}}) \mathbf{N}\). If its initial velocity at \(t=\) 0 is \(v=(3 \hat{i}+12 \hat{j}) \mathrm{m} / \mathrm{s}\), the time at which it will just have a velocity along \(y\)-axis is :