Work, Energy and Power

Related Questions

• A force $\vec F = 6\hat i + 2\hat j - 3\hat k$ acts on a particle and produces a displacement of $\vec s = 2\hat i - 3\hat j + x\hat k.$ If the work done is zero, the value of x is

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• The potential energy between two atoms in a molecule is given by $U(x) = \frac{a}{{{x^{12}}}} - \frac{b}{{{x^6}}}$; where a and b are positive constants and x is the distance between the atoms. The atom is in stable equilibrium when

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• A force of $(3\,\hat i + 4\,\hat j)$ Newton acts on a body and displaces it by $(3\,\hat i + 4\hat j)\,m.$ The work done by the force is

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• A shell of mass m moving with velocity v suddenly breaks into 2 pieces. The part having mass m/4 remains stationary. The velocity of the other shell will be

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• If the momentum of a body is increased n times, its kinetic energy increases

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