- 1(current)
Q. No.In a projectile motion the velocity,
| 1. | is always perpendicular to the acceleration |
| 2. | is never perpendicular to the acceleration |
| 3. | is perpendicular to the acceleration for one instant only |
| 4. | is perpendicular to the acceleration for two instants |
Subtopic: Projectile Motion |
65%
Level 2: 60%+
Hints
Two bullets are fired simultaneously, horizontally and with different speeds from the same place. Which bullet will hit the ground first?
| 1. | the faster one |
| 2. | the slower one |
| 3. | both will reach simultaneously |
| 4. | depends on the masses |
Subtopic: Projectile Motion |
76%
Level 2: 60%+
Hints
The range of a projectile fired at an angle of \(15^\circ\) is \(50\) m. If it is fired with the same speed at an angle of \(45^\circ,\) its range will be:
1. \(25\) m
2. \(37\) m
3. \(50\) m
4. \(100\) m
Subtopic: Projectile Motion |
82%
Level 1: 80%+
Hints
Two projectiles \(A\) and \(B\) are launched at angles of \(15^\circ\) and \(45^\circ\) above the horizontal, respectively, in the absence of air resistance. If their horizontal ranges are denoted by \(R_A\) and \(R_B,\) which of the following statements is correct?
| 1. | \(R_A < R_B\) |
| 2. | \(R_A = R_B\) |
| 3. | \(R_A > R_B\) |
| 4. | The information is insufficient to decide the relation of \(R_A\) with \(R_B.\) |
Subtopic: Projectile Motion |
Level 3: 35%-60%
Hints
- 1(current)
Q. No.
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