141488 A body of mass \(2 \mathrm{~kg}\) thrown vertically from the ground with a velocity of \(8 \mathrm{~ms}^{-1}\) reaches a maximum height \(3 \mathrm{~m}\). The work done by the air resistance is (acceleration due to gravity = \(10 \mathrm{~ms}^{-2}\) )

141489 A stone is released from an aeroplane which is rising with upward acceleration \(5 \mathrm{~m} / \mathrm{s}^{2}\). Here, g \(=10 \mathrm{~m} / \mathrm{s}^{2}\). Two seconds after the release, separation between stone and aeroplane will be

141490 Two childrens Ramesh (on path ARB) and Sohan (on path ASB), travel down slides of identical height \(h\) but different shapes as shown in the figure. Assuming, they start down the frictionless slides at the same time with zero initial velocity, which of the following statement is true?

141492 A cart of mass \(150 \mathrm{~kg}\) is pulled horizontally on a frictionless surface with force \(10 \mathrm{~N}\). If \(100 \mathrm{~g} / \mathrm{s}\) sand is being dropped in the cart vertically then find the speed of the system when cart has \(100 \mathrm{~kg}\) sand in it.

141493 The position vector of the particle is \(r(t)=a\) \(\cos \omega t \hat{\mathbf{i}}+\mathbf{a} \sin \omega t \hat{\mathbf{j}}\), where a and \(\omega\) are real constants of suitable dimensions. The acceleration is:

141488 A body of mass \(2 \mathrm{~kg}\) thrown vertically from the ground with a velocity of \(8 \mathrm{~ms}^{-1}\) reaches a maximum height \(3 \mathrm{~m}\). The work done by the air resistance is (acceleration due to gravity = \(10 \mathrm{~ms}^{-2}\) )

141489 A stone is released from an aeroplane which is rising with upward acceleration \(5 \mathrm{~m} / \mathrm{s}^{2}\). Here, g \(=10 \mathrm{~m} / \mathrm{s}^{2}\). Two seconds after the release, separation between stone and aeroplane will be

141490 Two childrens Ramesh (on path ARB) and Sohan (on path ASB), travel down slides of identical height \(h\) but different shapes as shown in the figure. Assuming, they start down the frictionless slides at the same time with zero initial velocity, which of the following statement is true?

141492 A cart of mass \(150 \mathrm{~kg}\) is pulled horizontally on a frictionless surface with force \(10 \mathrm{~N}\). If \(100 \mathrm{~g} / \mathrm{s}\) sand is being dropped in the cart vertically then find the speed of the system when cart has \(100 \mathrm{~kg}\) sand in it.

141493 The position vector of the particle is \(r(t)=a\) \(\cos \omega t \hat{\mathbf{i}}+\mathbf{a} \sin \omega t \hat{\mathbf{j}}\), where a and \(\omega\) are real constants of suitable dimensions. The acceleration is:

141488 A body of mass \(2 \mathrm{~kg}\) thrown vertically from the ground with a velocity of \(8 \mathrm{~ms}^{-1}\) reaches a maximum height \(3 \mathrm{~m}\). The work done by the air resistance is (acceleration due to gravity = \(10 \mathrm{~ms}^{-2}\) )

141489 A stone is released from an aeroplane which is rising with upward acceleration \(5 \mathrm{~m} / \mathrm{s}^{2}\). Here, g \(=10 \mathrm{~m} / \mathrm{s}^{2}\). Two seconds after the release, separation between stone and aeroplane will be

141490 Two childrens Ramesh (on path ARB) and Sohan (on path ASB), travel down slides of identical height \(h\) but different shapes as shown in the figure. Assuming, they start down the frictionless slides at the same time with zero initial velocity, which of the following statement is true?

141492 A cart of mass \(150 \mathrm{~kg}\) is pulled horizontally on a frictionless surface with force \(10 \mathrm{~N}\). If \(100 \mathrm{~g} / \mathrm{s}\) sand is being dropped in the cart vertically then find the speed of the system when cart has \(100 \mathrm{~kg}\) sand in it.

141493 The position vector of the particle is \(r(t)=a\) \(\cos \omega t \hat{\mathbf{i}}+\mathbf{a} \sin \omega t \hat{\mathbf{j}}\), where a and \(\omega\) are real constants of suitable dimensions. The acceleration is:

141488 A body of mass \(2 \mathrm{~kg}\) thrown vertically from the ground with a velocity of \(8 \mathrm{~ms}^{-1}\) reaches a maximum height \(3 \mathrm{~m}\). The work done by the air resistance is (acceleration due to gravity = \(10 \mathrm{~ms}^{-2}\) )

141489 A stone is released from an aeroplane which is rising with upward acceleration \(5 \mathrm{~m} / \mathrm{s}^{2}\). Here, g \(=10 \mathrm{~m} / \mathrm{s}^{2}\). Two seconds after the release, separation between stone and aeroplane will be

141490 Two childrens Ramesh (on path ARB) and Sohan (on path ASB), travel down slides of identical height \(h\) but different shapes as shown in the figure. Assuming, they start down the frictionless slides at the same time with zero initial velocity, which of the following statement is true?

141492 A cart of mass \(150 \mathrm{~kg}\) is pulled horizontally on a frictionless surface with force \(10 \mathrm{~N}\). If \(100 \mathrm{~g} / \mathrm{s}\) sand is being dropped in the cart vertically then find the speed of the system when cart has \(100 \mathrm{~kg}\) sand in it.

141493 The position vector of the particle is \(r(t)=a\) \(\cos \omega t \hat{\mathbf{i}}+\mathbf{a} \sin \omega t \hat{\mathbf{j}}\), where a and \(\omega\) are real constants of suitable dimensions. The acceleration is:

141488 A body of mass \(2 \mathrm{~kg}\) thrown vertically from the ground with a velocity of \(8 \mathrm{~ms}^{-1}\) reaches a maximum height \(3 \mathrm{~m}\). The work done by the air resistance is (acceleration due to gravity = \(10 \mathrm{~ms}^{-2}\) )

141489 A stone is released from an aeroplane which is rising with upward acceleration \(5 \mathrm{~m} / \mathrm{s}^{2}\). Here, g \(=10 \mathrm{~m} / \mathrm{s}^{2}\). Two seconds after the release, separation between stone and aeroplane will be

141490 Two childrens Ramesh (on path ARB) and Sohan (on path ASB), travel down slides of identical height \(h\) but different shapes as shown in the figure. Assuming, they start down the frictionless slides at the same time with zero initial velocity, which of the following statement is true?

141492 A cart of mass \(150 \mathrm{~kg}\) is pulled horizontally on a frictionless surface with force \(10 \mathrm{~N}\). If \(100 \mathrm{~g} / \mathrm{s}\) sand is being dropped in the cart vertically then find the speed of the system when cart has \(100 \mathrm{~kg}\) sand in it.

141493 The position vector of the particle is \(r(t)=a\) \(\cos \omega t \hat{\mathbf{i}}+\mathbf{a} \sin \omega t \hat{\mathbf{j}}\), where a and \(\omega\) are real constants of suitable dimensions. The acceleration is: