| 1. | \(1.4\) m | 2. | \(1.0\) m |
| 3. | \(0.8\) m | 4. | \(0.6\) m |
| 1. | \(20.0\) m | 2. | \(10.0\) m |
| 3. | \(\dfrac{\sqrt2}{0.7}\) m | 4. | \(14\sqrt2\) m |
| 1. | radial acceleration \(a_{r}=0;\) tangential acceleration \(a_{t}\neq 0.\) |
| 2. | radial acceleration \(a_{r}=0;\) tangential acceleration \(a_{t}=0.\) |
| 3. | radial acceleration \(a_{r}\neq 0;\) tangential acceleration \(a_{t}\neq 0.\) |
| 4. | radial acceleration \(a_{r}\neq 0;\) tangential acceleration \(a_{t}=0\) |
| 1. | \(4m\pi \nu^2R \) | 2. | \(4\pi^2 \nu R \) |
| 3. | \(4\pi^2 \nu^2R \) | 4. | \(4\pi^2 \nu^2R^2 \) |
| Statement I: | When a projectile is at its highest point, its tangential acceleration is zero. |
| Statement II: | When a projectile is at the highest point of its trajectory, its speed is minimum. |
| 1. | Statement I is incorrect and Statement II is correct. |
| 2. | Both Statement I and Statement II are correct. |
| 3. | Both Statement I and Statement II are incorrect. |
| 4. | Statement I is correct and Statement II is incorrect. |
| 1. | Their time of flight will be the same. |
| 2. | Their maximum height will be the same. |
| 3. | Their range will be the same. |
| 4. | Their landing velocity will be the same. |
