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A ball is thrown at an angle θ0 above the horizontal, and follows the parabolic path taken by a projectile. Let its speed be v when its trajectory makes an angle θ with the horizontal. Assuming A to be a constant,
1. v=Acosθ
2. v=Asinθ
3. v=Atanθ
4. v=Asecθ
Subtopic:  Projectile Motion |
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The average velocity of a projectile from the point of projection to impact is v1 while the average velocity from projection to maximum height(H) is v2.
It can be concluded that:
 
1. v1>v2
2. v1<v2
3. v1=v2
4. Any of the above can be true depending on the angle of projection
Subtopic:  Projectile Motion |
From NCERT
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A projectile is launched at an angle θ (<90) above the horizontal. Its velocity is measured along the direction of projection and is plotted against time and the magnitudes of the slopes are indicated in the figure below. Which of the following is the correct graph?

                   
1. a
2. b
3. c
4. d

Subtopic:  Projectile Motion |
From NCERT
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A projectile is fired from the top of a cliff, the maximum range of the projectile being 1000 m on level ground. The maximum range of the projectile, measured from the base of the cliff is:
1. greater than 1000 m
2. less than 1000 m
3. equal to 1000 m
4. can be any of the above depending on the height of the cliff
Subtopic:  Projectile Motion |
From NCERT
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A ball is thrown up with a speed u at an angle of 60 with the horizontal; the thrower of the ball runs with a uniform speed v and stops suddenly when he reaches a certain point. He observes that the ball is at its maximum height, and then waits until it reaches him. Then
1. v=4u
2. v=2u
3. v=u
4. v<u
Subtopic:  Projectile Motion |
From NCERT
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Two projectiles are fired simultaneously from the same point, one (A)-vertically upward and the other (B)-at some angle with the vertical. Both projectiles reach their maximum height above the ground simultaneously. Their separation at this instant is 1600 m. The range of the second projectile (B) is:
1. 2.4 km
2. 1.63 km
3. 1.62 km
4. 3.2 km
Subtopic:  Projectile Motion |
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From NCERT
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Particles are simultaneously projected in all possible directions from a point in space, located in a uniform gravitational field. The initial speed of the particle is u. The maximum separation between any two particles, after a time t, is:
 
1. ut 2. 2ut
3. ut+12gt2 4. 2ut+gt2
Subtopic:  Projectile Motion |
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A projectile projected close to the earth's surface rises to a maximum height of H and has a horizontal range of d. The horizontal velocity of the projectile is:

1.  2gd 2. 2gH
3. gd22H 4. gd28H

Subtopic:  Projectile Motion |
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A ball is thrown horizontally with a speed u from the top of a tall building and it impacts the ground at a horizontal distance which is equal to the height of the building. The height of the building is:
1. u24g 2. u22g
3. 2u2g 4. 2u2g
Subtopic:  Projectile Motion |
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The acceleration of a projectile, in the direction of its motion:
1. is always positive
2. is always negative
3. maybe positive, negative or zero
4. is always non-zero
Subtopic:  Projectile Motion |
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