Maximum Range

Q. The maximum range of rifle bullet on the horizontal ground is 6 km its maximum range on an inclined of ${30}^{\circ }$ will be

1. 1 km
2. 2 km
3. 4 km
4. 6 km

Q. Galileo writes that for angles of projection of a projectile at angles $(45+\theta )and(45-\theta )$, the horizontal ranges described by the projectile are in the ratio of $(if\theta \le 45)$

1. 2 : 1
2. 1 : 2
3. 1 : 1
4. 2 : 3

Q.

When a body is thrown with a velocity u making an angle $\theta$ with the horizontal plane, the maximum distance covered by it in horizontal direction is

1. $\frac{u^{2}sin\theta }{g}$

2. $\frac{u^{2}sin2\theta }{2g}$

3. $\frac{u^{2}sin2\theta }{g}$

4. $\frac{u^{2}cos2\theta }{g}$