A particle of mass m moving with velocity 1 m/s collides elastically with another particle of mass 2m (initialy at rest). If the incident particle is deflected by 90∘. The angle θ made by the heavier mass with the initial direction of motion of mass m will be equal to:(consider collision to be perfectly elastic)

A particle of mass m moving with velocity 1 m/s collides elastically w

1.	A particle of mass m moving with velocity 1 m/s collides elastically with another particle of mass 2m (initialy at rest). If the incident particle is deflected by 90∘. The angle θ made by the heavier mass with the initial direction of motion of mass m will be equal to:(consider collision to be perfectly elastic)
Answer» A particle of mass $m$ moving with velocity $1 m/s$ collides elastically with another particle of mass $2 m$ (initialy at rest). If the incident particle is deflected by $90^{\circ}$ . The angle $θ$ made by the heavier mass with the initial direction of motion of mass $m$ will be equal to: (consider collision to be perfectly elastic)

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