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A 6 kg bomb at rest explodes into three ...

A 6 kg bomb at rest explodes into three equal pieces P, Q and R. If P flies with speed 30 m/s and Q with speed 40 m/s making an angle `90^(@)` with the direction of P. The angle between the direction of motion of P and R is about

A

`143^(@)`

B

`127^(@)`

C

`120^(@)`

D

`150^(@)`

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AAKASH INSTITUTE-LAWS OF MOTION-Assignment (SECTION-A)
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  9. Which is a suitable method to decrease friction

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