Projectile to a Height:Angry Birds

Q. An aeroplane moving horizontally with a speed of 720 km/h drops a food packet, while flying at a height of 396.9 m. The time taken by a food packet to reach the ground and its horizontal range is $(Takeg=9.8m/se{c}^2)$

1. 9 sec and 1800 m
2. 3 sec and 2000 m
3. 5 sec and 500 m
4. 8 sec and 1500 m

Q. Equation of trajectory of an angry bird is Y = 10x - $\frac{5}{9}{x}^2$. What is the maximum height reached?

1. 25 m
2. 55 m
3. 35 m
4. 45 m

Q.

An airplane moving horizontally with a speed of 720 km/h drops a food pocket while flying at a height of 396.9 m. The time taken by a food pocket to reach the ground and its horizontal range is (Take g = 9.8 m/$se{c}^2$)

1. 3 sec and 2000 m

2. 5 sec and 500 m

3. 9 sec and 1800 m

4. 8 sec and 1500 m

Q. A ball is thrown at different angles with the same speed u and from the same points and it has same range in both the cases. If $y_1$ and $y_2$ be the heights attained in the two cases, then $y_1+y_2=$

1. $\frac{u^2}{g}$
2. $\frac{2u^2}{g}$
3. $\frac{u^2}{2g}$
4. $\frac{u^2}{4g}$

Q. An aeroplane moving horizontally with a speed of 720 km/h drops a food packet, while flying at a height of 396.9 m. The time taken by a food packet to reach the ground and its horizontal range is $(Takeg=9.8m/se{c}^2)$

1. 3 sec and 2000 m
2. 5 sec and 500 m
3. 8 sec and 1500 m
4. 9 sec and 1800 m

Q. Equation of trajectory of an angry bird is Y = 10x - $\frac{5}{9}{x}^2$. What is the maximum height reached?

1. 25 m
2. 35 m
3. 45 m
4. 55 m

Q. The horizontal range and maximum height for a projectile is same. The angle of projectile is

1. $\theta ={\tan }^{-1}\left(\frac{1}{4}\right)$
2. $\theta ={\tan }^{-1}\left(4\right)$
3. $\theta ={\tan }^{-1}\left(2\right)$
4. $\theta =45°$

Q. An aeroplane moving horizontally with a speed of 720 km/h drops a food packet, while flying at a height of 396.9 m. The time taken by a food packet to reach the ground and its horizontal range is $(Takeg=9.8m/se{c}^2)$

1. 3 sec and 2000 m
2. 5 sec and 500 m
3. 8 sec and 1500 m
4. 9 sec and 1800 m

Q. An aeroplane moving horizontally with a speed of 720 km/h drops a food packet, while flying at a height of 396.9 m. The time taken by a food packet to reach the ground and its horizontal range is $(Takeg=9.8m/se{c}^2)$

1. 3 sec and 2000 m
2. 5 sec and 500 m
3. 8 sec and 1500 m
4. 9 sec and 1800 m

Q. Equation of trajectory of an angry bird is Y = 10x - $\frac{5}{9}{x}^2$. What is the maximum height reached?

1. 25 m
2. 35 m
3. 45 m
4. 55 m