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BITSAT2012PhysicsMotion in Two DimensionsActual

The range of the particle when launched at an angle of 15^ with the horizontal is 1.5 ~km . What is the range of the projectile when launched at an angle of 45^ to the horizontal.

Options

  1. A1.5 ~km
  2. B3.0 ~km
  3. C6.0 ~km
  4. D0.75 ~km

Correct answer

B. 3.0 ~km

Step-by-step solution

1.5= u ² 30 ~g ; R = u ² 90 ~g =3 ~km

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