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 |
63%
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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 |
74%
From NCERT
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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 |
79%
From NCERT
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Two projectiles A and B are projected with angle of projection 15° for the projectile A and 45° for the projectile B. If RA and RB be the horizontal range for the two projectiles, then

1. RA < RB

2. RA = RB

3. RA > RB

4. the information is insufficient to decide the relation of RA with RB

Subtopic:  Projectile Motion |
From NCERT
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