1. | \(v_1>v_2\) |
2. | \(v_1<v_2\) |
3. | \(v_1=v_2\) |
4. | Any of the above can be true depending on the angle of projection |
1. | \(u_1=\dfrac{\sqrt3}{2}u_2\) | 2. | \(u_1=\dfrac{1}{2}u_2\) |
3. | \(u_1=\dfrac{1}{\sqrt2}u_2\) | 4. | \(u_1=\dfrac{1}{\sqrt3}u_2\) |
1. \(a\)
2. \(b\)
3. \(c\)
4. \(d\)
1. | \(2\) km | 2. | \(1\) km |
3. | \(\dfrac12\) km | 4. | \(\dfrac14\) km |
1. | zero | 2. | \(\dfrac{2u^2}{R}\) |
3. | \(\dfrac{u^2}{\sqrt2R}\) | 4. | \(\dfrac{\sqrt2u^2}{R}\) |
1. | \(10\) min | 2. | \(5\sqrt3\) min |
3. | \(20\) min | 4. | \(\dfrac{10}{\sqrt3}\) min |
1. | \(1000\) m | greater than
2. | \(1000\) m | less than
3. | \(1000\) m | equal to
4. | can be any of the above depending on the height of the cliff |