146115 A uniform chain has a mass ' \(m\) ' and length ' \(l\) '. It is held on a frictionless table with one-sixth of its length hanging over the edge. The work done in just pulling the hanging part back on the table is:

146116 A boy throws a cricket ball from the boundary to the wicket keeper. If the frictional force due to air \(\left(f_{\mathrm{a}}\right)\) cannot be ignored, the forces acting on the ball at the position \(X\) are represented by

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146118 When a body is placed on a rough plane \((\) coefficient of friction \(=\mu)\) inclined at an angle \(\theta\) to the horizontal, its acceleration is _ \(\quad(\) acceleration due to gravity \(=\mathbf{g}\) )

146119 Ablock ' \(A\) ' of mass \(100 \mathrm{~kg}\) is kept above another block ' \(B\) ' of mass \(300 \mathrm{~kg}\). ' \(A\) ' is tied to the wall ' \(C\) ' with a horizontal string. The coefficient of friction between ' \(A\) ' and ' \(B\) ' is 0.35 and that between ' \(B\) ' and the horizontal surface is 0.5 Find the horizontal force \(P\). necessary to move block ' \(B\) '.

146115 A uniform chain has a mass ' \(m\) ' and length ' \(l\) '. It is held on a frictionless table with one-sixth of its length hanging over the edge. The work done in just pulling the hanging part back on the table is:

146116 A boy throws a cricket ball from the boundary to the wicket keeper. If the frictional force due to air \(\left(f_{\mathrm{a}}\right)\) cannot be ignored, the forces acting on the ball at the position \(X\) are represented by

1

2

3

4

146118 When a body is placed on a rough plane \((\) coefficient of friction \(=\mu)\) inclined at an angle \(\theta\) to the horizontal, its acceleration is _ \(\quad(\) acceleration due to gravity \(=\mathbf{g}\) )

146119 Ablock ' \(A\) ' of mass \(100 \mathrm{~kg}\) is kept above another block ' \(B\) ' of mass \(300 \mathrm{~kg}\). ' \(A\) ' is tied to the wall ' \(C\) ' with a horizontal string. The coefficient of friction between ' \(A\) ' and ' \(B\) ' is 0.35 and that between ' \(B\) ' and the horizontal surface is 0.5 Find the horizontal force \(P\). necessary to move block ' \(B\) '.

146115 A uniform chain has a mass ' \(m\) ' and length ' \(l\) '. It is held on a frictionless table with one-sixth of its length hanging over the edge. The work done in just pulling the hanging part back on the table is:

146116 A boy throws a cricket ball from the boundary to the wicket keeper. If the frictional force due to air \(\left(f_{\mathrm{a}}\right)\) cannot be ignored, the forces acting on the ball at the position \(X\) are represented by

1

2

3

4

146118 When a body is placed on a rough plane \((\) coefficient of friction \(=\mu)\) inclined at an angle \(\theta\) to the horizontal, its acceleration is _ \(\quad(\) acceleration due to gravity \(=\mathbf{g}\) )

146119 Ablock ' \(A\) ' of mass \(100 \mathrm{~kg}\) is kept above another block ' \(B\) ' of mass \(300 \mathrm{~kg}\). ' \(A\) ' is tied to the wall ' \(C\) ' with a horizontal string. The coefficient of friction between ' \(A\) ' and ' \(B\) ' is 0.35 and that between ' \(B\) ' and the horizontal surface is 0.5 Find the horizontal force \(P\). necessary to move block ' \(B\) '.

146115 A uniform chain has a mass ' \(m\) ' and length ' \(l\) '. It is held on a frictionless table with one-sixth of its length hanging over the edge. The work done in just pulling the hanging part back on the table is:

146116 A boy throws a cricket ball from the boundary to the wicket keeper. If the frictional force due to air \(\left(f_{\mathrm{a}}\right)\) cannot be ignored, the forces acting on the ball at the position \(X\) are represented by

1

2

3

4

146118 When a body is placed on a rough plane \((\) coefficient of friction \(=\mu)\) inclined at an angle \(\theta\) to the horizontal, its acceleration is _ \(\quad(\) acceleration due to gravity \(=\mathbf{g}\) )

146119 Ablock ' \(A\) ' of mass \(100 \mathrm{~kg}\) is kept above another block ' \(B\) ' of mass \(300 \mathrm{~kg}\). ' \(A\) ' is tied to the wall ' \(C\) ' with a horizontal string. The coefficient of friction between ' \(A\) ' and ' \(B\) ' is 0.35 and that between ' \(B\) ' and the horizontal surface is 0.5 Find the horizontal force \(P\). necessary to move block ' \(B\) '.