An object of mass 2 kg moving under the action of a force which varies with time as shown in the figure. Which one of the following statements is correct for the interval from 0 to 20 s ?

The momentum of the object increases by 75 ms - 1 .

The momentum of the object decreases by 75 ms - 1 .

The momentum of the object increases by 125 ms - 1 .

The change in momentum cannot be found as the initial speed is unknown.

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The inertia of an object can be measured by its ______.

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Important Questions on Force and Laws of Motion

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Science>Physics>Force and Laws of Motion>Inertia and Mass

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Science>Physics>Force and Laws of Motion>Inertia and Mass

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Science>Physics>Force and Laws of Motion>Inertia and Mass

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Science>Physics>Force and Laws of Motion>Inertia and Mass

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Science>Physics>Force and Laws of Motion>Inertia and Mass

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Science>Physics>Force and Laws of Motion>Inertia and Mass

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Science>Physics>Force and Laws of Motion>Inertia and Mass

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M

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\frac{M}{5}

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Science>Physics>Force and Laws of Motion>Inertia and Mass

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\frac{1}{3}

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a

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Science>Physics>Force and Laws of Motion>Inertia and Mass

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Science>Physics>Force and Laws of Motion>Inertia and Mass

A bullet of

20 g

is horizontally fired with velocity of

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Science>Physics>Force and Laws of Motion>Inertia and Mass

The variation in momentum with time, for a body under collision is shown in figure. The maximum & minimum instantaneous forces are respectively on these points:

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