00. Momentum, Force and Inertia
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Laws of Motion

145828 \(\quad\) A force \(F\) is applied on a body (which moves on a straight line) for a duration of \(3 \mathrm{~s}\). The momentum of the body changes from \(10 \mathrm{~g} \mathrm{~cm} / \mathrm{s}\) to \(40 \mathrm{~g} \mathrm{~cm} / \mathrm{s}\). The magnitude of the force \(F\) is

1 10 dynes
2 10 Newton
3 120 dynes
4 12 dynes
Laws of Motion

145829 When a force of 1 Newton acts on a mass of \(1 \mathrm{~kg}\) which is able to move freely, the object moves in the direction of force with a/an

1 speed of \(1 \mathrm{~km} / \mathrm{s}\)
2 acceleration of \(1 \mathrm{~m} / \mathrm{s}^{2}\)
3 speed of \(1 \mathrm{~m} / \mathrm{s}\)
4 acceleration of \(1 \mathrm{~km} / \mathrm{s}^{2}\)
Laws of Motion

145830 A body of mass \(m=3.513 \mathrm{~kg}\) is moving along the \(x\)-axis with a speed of \(5.00 \mathrm{~ms}^{-1}\). The magnitude of its momentum is recorded as

1 \(17.6 \mathrm{~kg} \mathrm{~ms}^{-1}\)
2 \(17.565 \mathrm{~kg} \mathrm{~ms}^{-1}\)
3 \(17.56 \mathrm{~kg} \mathrm{~ms}^{-1}\)
4 \(17.57 \mathrm{~kg} \mathrm{~ms}^{-1}\)
Laws of Motion

145832 The linear momentum of a particle varies with time \(t\) as \(P=a+b t+c t^{2}\). Then which of the following is correct?

1 Force is dependent linearly on time
2 Velocity of particle is inversely proportional to time
3 Displacement of the particle is independent of time
4 Force varies with time in a quadratic manner.
Laws of Motion

145828 \(\quad\) A force \(F\) is applied on a body (which moves on a straight line) for a duration of \(3 \mathrm{~s}\). The momentum of the body changes from \(10 \mathrm{~g} \mathrm{~cm} / \mathrm{s}\) to \(40 \mathrm{~g} \mathrm{~cm} / \mathrm{s}\). The magnitude of the force \(F\) is

1 10 dynes
2 10 Newton
3 120 dynes
4 12 dynes
Laws of Motion

145829 When a force of 1 Newton acts on a mass of \(1 \mathrm{~kg}\) which is able to move freely, the object moves in the direction of force with a/an

1 speed of \(1 \mathrm{~km} / \mathrm{s}\)
2 acceleration of \(1 \mathrm{~m} / \mathrm{s}^{2}\)
3 speed of \(1 \mathrm{~m} / \mathrm{s}\)
4 acceleration of \(1 \mathrm{~km} / \mathrm{s}^{2}\)
Laws of Motion

145830 A body of mass \(m=3.513 \mathrm{~kg}\) is moving along the \(x\)-axis with a speed of \(5.00 \mathrm{~ms}^{-1}\). The magnitude of its momentum is recorded as

1 \(17.6 \mathrm{~kg} \mathrm{~ms}^{-1}\)
2 \(17.565 \mathrm{~kg} \mathrm{~ms}^{-1}\)
3 \(17.56 \mathrm{~kg} \mathrm{~ms}^{-1}\)
4 \(17.57 \mathrm{~kg} \mathrm{~ms}^{-1}\)
Laws of Motion

145832 The linear momentum of a particle varies with time \(t\) as \(P=a+b t+c t^{2}\). Then which of the following is correct?

1 Force is dependent linearly on time
2 Velocity of particle is inversely proportional to time
3 Displacement of the particle is independent of time
4 Force varies with time in a quadratic manner.
Laws of Motion

145828 \(\quad\) A force \(F\) is applied on a body (which moves on a straight line) for a duration of \(3 \mathrm{~s}\). The momentum of the body changes from \(10 \mathrm{~g} \mathrm{~cm} / \mathrm{s}\) to \(40 \mathrm{~g} \mathrm{~cm} / \mathrm{s}\). The magnitude of the force \(F\) is

1 10 dynes
2 10 Newton
3 120 dynes
4 12 dynes
Laws of Motion

145829 When a force of 1 Newton acts on a mass of \(1 \mathrm{~kg}\) which is able to move freely, the object moves in the direction of force with a/an

1 speed of \(1 \mathrm{~km} / \mathrm{s}\)
2 acceleration of \(1 \mathrm{~m} / \mathrm{s}^{2}\)
3 speed of \(1 \mathrm{~m} / \mathrm{s}\)
4 acceleration of \(1 \mathrm{~km} / \mathrm{s}^{2}\)
Laws of Motion

145830 A body of mass \(m=3.513 \mathrm{~kg}\) is moving along the \(x\)-axis with a speed of \(5.00 \mathrm{~ms}^{-1}\). The magnitude of its momentum is recorded as

1 \(17.6 \mathrm{~kg} \mathrm{~ms}^{-1}\)
2 \(17.565 \mathrm{~kg} \mathrm{~ms}^{-1}\)
3 \(17.56 \mathrm{~kg} \mathrm{~ms}^{-1}\)
4 \(17.57 \mathrm{~kg} \mathrm{~ms}^{-1}\)
Laws of Motion

145832 The linear momentum of a particle varies with time \(t\) as \(P=a+b t+c t^{2}\). Then which of the following is correct?

1 Force is dependent linearly on time
2 Velocity of particle is inversely proportional to time
3 Displacement of the particle is independent of time
4 Force varies with time in a quadratic manner.
Laws of Motion

145828 \(\quad\) A force \(F\) is applied on a body (which moves on a straight line) for a duration of \(3 \mathrm{~s}\). The momentum of the body changes from \(10 \mathrm{~g} \mathrm{~cm} / \mathrm{s}\) to \(40 \mathrm{~g} \mathrm{~cm} / \mathrm{s}\). The magnitude of the force \(F\) is

1 10 dynes
2 10 Newton
3 120 dynes
4 12 dynes
Laws of Motion

145829 When a force of 1 Newton acts on a mass of \(1 \mathrm{~kg}\) which is able to move freely, the object moves in the direction of force with a/an

1 speed of \(1 \mathrm{~km} / \mathrm{s}\)
2 acceleration of \(1 \mathrm{~m} / \mathrm{s}^{2}\)
3 speed of \(1 \mathrm{~m} / \mathrm{s}\)
4 acceleration of \(1 \mathrm{~km} / \mathrm{s}^{2}\)
Laws of Motion

145830 A body of mass \(m=3.513 \mathrm{~kg}\) is moving along the \(x\)-axis with a speed of \(5.00 \mathrm{~ms}^{-1}\). The magnitude of its momentum is recorded as

1 \(17.6 \mathrm{~kg} \mathrm{~ms}^{-1}\)
2 \(17.565 \mathrm{~kg} \mathrm{~ms}^{-1}\)
3 \(17.56 \mathrm{~kg} \mathrm{~ms}^{-1}\)
4 \(17.57 \mathrm{~kg} \mathrm{~ms}^{-1}\)
Laws of Motion

145832 The linear momentum of a particle varies with time \(t\) as \(P=a+b t+c t^{2}\). Then which of the following is correct?

1 Force is dependent linearly on time
2 Velocity of particle is inversely proportional to time
3 Displacement of the particle is independent of time
4 Force varies with time in a quadratic manner.