The range of a projectile, when launche...

The range of a projectile, 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 with the same speed ?

0.75 km

1.5 km

3.0 km

6.0 km

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