NEWTON'S LAWS OF MOTION
Laws of Motion

270185 A\(0.2 \mathrm{~kg}\) object at rest is subjected to a force \((0.3 \hat{i}-0.4 \hat{j}) \mathbf{N}\). What is its velocity vector after 6 sec

1 \((9 \hat{i}-12 \hat{j})\)
2 \((8 \hat{i}-16 \hat{j})\)
3 \((12 \hat{i}-9 \hat{j})\)
4 \((16 \hat{i}-8 \hat{j})\)
Laws of Motion

270186 A body of mass\(2 \mathbf{~ k g}\) is moving with a velocity of \(\vec{u}=3 \hat{i}+4 \hat{j} \mathrm{~m} / \mathrm{s} . \quad\) A steady force \(\vec{F}=\hat{i}-2 \hat{j} N\) begins to act on it. After four seconds , the body will be moving along.

1 \(X\)-axis with a velocity of \(2 \mathrm{~m} / \mathrm{s}\)
2 Y-axis with a velocity of\(5 \mathrm{~m} / \mathrm{s}\)
3 \(\mathrm{X}\)-axis with a velocity of \(5 \mathrm{~m} / \mathrm{s}\)
4 Y-axis with a velocity of\(2 \mathrm{~m} / \mathrm{s}\)
Laws of Motion

270187 Three forces \(\bar{F}_{1}, \bar{F}_{2}\) and \(\bar{F}_{3}\) are simultaneously acting on a particle of mass ' \(m\) ' and keep it in equilibrium. If\(\bar{F}_{1}\) force is reversed in direction only, the acceleration of the particle will be.

1 \(\overline{F_{1}} / m\)
2 \(2 \bar{F}_{1} / m\)
3 \(\bar{F}_{1} / m\)
4 \(-2 \bar{F}_{1} / m\)
Laws of Motion

270188 A block of metal weighing\(2 \mathrm{~kg}\) is resting on a frictionless plane. It is struck by a jet releasing water at a rate of \(1 \mathrm{~kg} / \mathrm{s}\) and at a speed of \(5 \mathrm{~m} /\) \(\mathrm{s}\). The initial acceleration of the block will be

1 \(2.5 \mathrm{~m} / \mathrm{s}^{2}\)
2 \(5 \mathrm{~m} / \mathrm{s}^{2}\)
3 \(10 \mathrm{~m} / \mathrm{s}^{2}\)
4 \(20 \mathrm{~m} / \mathrm{s}^{2}\)
Laws of Motion

270185 A\(0.2 \mathrm{~kg}\) object at rest is subjected to a force \((0.3 \hat{i}-0.4 \hat{j}) \mathbf{N}\). What is its velocity vector after 6 sec

1 \((9 \hat{i}-12 \hat{j})\)
2 \((8 \hat{i}-16 \hat{j})\)
3 \((12 \hat{i}-9 \hat{j})\)
4 \((16 \hat{i}-8 \hat{j})\)
Laws of Motion

270186 A body of mass\(2 \mathbf{~ k g}\) is moving with a velocity of \(\vec{u}=3 \hat{i}+4 \hat{j} \mathrm{~m} / \mathrm{s} . \quad\) A steady force \(\vec{F}=\hat{i}-2 \hat{j} N\) begins to act on it. After four seconds , the body will be moving along.

1 \(X\)-axis with a velocity of \(2 \mathrm{~m} / \mathrm{s}\)
2 Y-axis with a velocity of\(5 \mathrm{~m} / \mathrm{s}\)
3 \(\mathrm{X}\)-axis with a velocity of \(5 \mathrm{~m} / \mathrm{s}\)
4 Y-axis with a velocity of\(2 \mathrm{~m} / \mathrm{s}\)
Laws of Motion

270187 Three forces \(\bar{F}_{1}, \bar{F}_{2}\) and \(\bar{F}_{3}\) are simultaneously acting on a particle of mass ' \(m\) ' and keep it in equilibrium. If\(\bar{F}_{1}\) force is reversed in direction only, the acceleration of the particle will be.

1 \(\overline{F_{1}} / m\)
2 \(2 \bar{F}_{1} / m\)
3 \(\bar{F}_{1} / m\)
4 \(-2 \bar{F}_{1} / m\)
Laws of Motion

270188 A block of metal weighing\(2 \mathrm{~kg}\) is resting on a frictionless plane. It is struck by a jet releasing water at a rate of \(1 \mathrm{~kg} / \mathrm{s}\) and at a speed of \(5 \mathrm{~m} /\) \(\mathrm{s}\). The initial acceleration of the block will be

1 \(2.5 \mathrm{~m} / \mathrm{s}^{2}\)
2 \(5 \mathrm{~m} / \mathrm{s}^{2}\)
3 \(10 \mathrm{~m} / \mathrm{s}^{2}\)
4 \(20 \mathrm{~m} / \mathrm{s}^{2}\)
Laws of Motion

270185 A\(0.2 \mathrm{~kg}\) object at rest is subjected to a force \((0.3 \hat{i}-0.4 \hat{j}) \mathbf{N}\). What is its velocity vector after 6 sec

1 \((9 \hat{i}-12 \hat{j})\)
2 \((8 \hat{i}-16 \hat{j})\)
3 \((12 \hat{i}-9 \hat{j})\)
4 \((16 \hat{i}-8 \hat{j})\)
Laws of Motion

270186 A body of mass\(2 \mathbf{~ k g}\) is moving with a velocity of \(\vec{u}=3 \hat{i}+4 \hat{j} \mathrm{~m} / \mathrm{s} . \quad\) A steady force \(\vec{F}=\hat{i}-2 \hat{j} N\) begins to act on it. After four seconds , the body will be moving along.

1 \(X\)-axis with a velocity of \(2 \mathrm{~m} / \mathrm{s}\)
2 Y-axis with a velocity of\(5 \mathrm{~m} / \mathrm{s}\)
3 \(\mathrm{X}\)-axis with a velocity of \(5 \mathrm{~m} / \mathrm{s}\)
4 Y-axis with a velocity of\(2 \mathrm{~m} / \mathrm{s}\)
Laws of Motion

270187 Three forces \(\bar{F}_{1}, \bar{F}_{2}\) and \(\bar{F}_{3}\) are simultaneously acting on a particle of mass ' \(m\) ' and keep it in equilibrium. If\(\bar{F}_{1}\) force is reversed in direction only, the acceleration of the particle will be.

1 \(\overline{F_{1}} / m\)
2 \(2 \bar{F}_{1} / m\)
3 \(\bar{F}_{1} / m\)
4 \(-2 \bar{F}_{1} / m\)
Laws of Motion

270188 A block of metal weighing\(2 \mathrm{~kg}\) is resting on a frictionless plane. It is struck by a jet releasing water at a rate of \(1 \mathrm{~kg} / \mathrm{s}\) and at a speed of \(5 \mathrm{~m} /\) \(\mathrm{s}\). The initial acceleration of the block will be

1 \(2.5 \mathrm{~m} / \mathrm{s}^{2}\)
2 \(5 \mathrm{~m} / \mathrm{s}^{2}\)
3 \(10 \mathrm{~m} / \mathrm{s}^{2}\)
4 \(20 \mathrm{~m} / \mathrm{s}^{2}\)
Laws of Motion

270185 A\(0.2 \mathrm{~kg}\) object at rest is subjected to a force \((0.3 \hat{i}-0.4 \hat{j}) \mathbf{N}\). What is its velocity vector after 6 sec

1 \((9 \hat{i}-12 \hat{j})\)
2 \((8 \hat{i}-16 \hat{j})\)
3 \((12 \hat{i}-9 \hat{j})\)
4 \((16 \hat{i}-8 \hat{j})\)
Laws of Motion

270186 A body of mass\(2 \mathbf{~ k g}\) is moving with a velocity of \(\vec{u}=3 \hat{i}+4 \hat{j} \mathrm{~m} / \mathrm{s} . \quad\) A steady force \(\vec{F}=\hat{i}-2 \hat{j} N\) begins to act on it. After four seconds , the body will be moving along.

1 \(X\)-axis with a velocity of \(2 \mathrm{~m} / \mathrm{s}\)
2 Y-axis with a velocity of\(5 \mathrm{~m} / \mathrm{s}\)
3 \(\mathrm{X}\)-axis with a velocity of \(5 \mathrm{~m} / \mathrm{s}\)
4 Y-axis with a velocity of\(2 \mathrm{~m} / \mathrm{s}\)
Laws of Motion

270187 Three forces \(\bar{F}_{1}, \bar{F}_{2}\) and \(\bar{F}_{3}\) are simultaneously acting on a particle of mass ' \(m\) ' and keep it in equilibrium. If\(\bar{F}_{1}\) force is reversed in direction only, the acceleration of the particle will be.

1 \(\overline{F_{1}} / m\)
2 \(2 \bar{F}_{1} / m\)
3 \(\bar{F}_{1} / m\)
4 \(-2 \bar{F}_{1} / m\)
Laws of Motion

270188 A block of metal weighing\(2 \mathrm{~kg}\) is resting on a frictionless plane. It is struck by a jet releasing water at a rate of \(1 \mathrm{~kg} / \mathrm{s}\) and at a speed of \(5 \mathrm{~m} /\) \(\mathrm{s}\). The initial acceleration of the block will be

1 \(2.5 \mathrm{~m} / \mathrm{s}^{2}\)
2 \(5 \mathrm{~m} / \mathrm{s}^{2}\)
3 \(10 \mathrm{~m} / \mathrm{s}^{2}\)
4 \(20 \mathrm{~m} / \mathrm{s}^{2}\)