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The initial speed of a body of mass 2kg ...

The initial speed of a body of mass `2kg` is `5ms^(-1)` A force acts for `4` seconds in the direction of motion of the body. The force time graph is shown in Calculate impulse of the force and also find the speed of the body .
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SL ARORA-Laws of Motion-Exercise
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  18. A ball of mass 20 gram hits a wall at an angle of 45^(@) with a veloci...

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  19. A glass ball whose mass is 10 g falls from a height of 40 m and reboun...

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  21. A force acting on a body of mass 2 kg varies with time as shown in fig...

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