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#10 | Mindmap

(Physics) > Work,Energy and Power

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Related Practice Questions :

If the increase in the kinetic energy of a body is 22%, then the increase in the momentum will be

(1) 22%

(2) 44%

(3) 10%

(4) 300%

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A body of mass ${m}_{1}$ moving with uniform velocity of 40 m/s collides with another mass ${m}_{2}$ at rest and then the two together begin to move with uniform velocity of 30 m/s. The ratio of their masses $\frac{{m}_{1}}{{m}_{2}}$ is

(1) 0.75

(2) 1.33

(3) 3.0

(4) 4.0

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A sphere of mass m moving horizontally with velocity ${v}_{0}$ collides against a pendulum bob of mass m. If the two masses stick together after the collision, then the maximum height attained is

(1) $\frac{{v}_{0}^{2}}{2g}$

(2) $\frac{{v}_{0}^{2}}{4g}$

(3) $\frac{{v}_{0}^{2}}{6g}$

(4) $\frac{{v}_{0}^{2}}{8g}$

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