A ball is projected with kinetic energy E at an angle of 45° to the horizontal. At the highest point during its flight, its kinetic energy will be 

(1) Zero

(2) E2

(3) E2

(4) E

Subtopic:  Projectile Motion |
 62%
From NCERT
PMT - 1994
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At the top of the trajectory of a projectile, the magnitude of the acceleration is

(1) Maximum

(2) Minimum

(3) Zero

(4) g

Subtopic:  Projectile Motion |
 76%
From NCERT
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A body is projected at such an angle that the horizontal range is three times the greatest height. The angle of projection is 

(1) 25o8'

(2) 33o7'

(3) 42o8'

(4) 53o8'

Subtopic:  Projectile Motion |
 68%
From NCERT
AIIMS - 1998
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Two bodies are projected with the same velocity. If one is projected at an angle of 30° and the other at an angle of 60° to the horizontal, the ratio of the maximum heights reached is 

(1) 3 : 1

(2) 1 : 3

(3) 1 : 2

(4) 2 : 1

Subtopic:  Projectile Motion |
 84%
From NCERT
AIIMS - 2001
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If the range of a gun that fires a shell with muzzle speed v is R, then the angle of elevation of the gun is 

(1) cos1v2Rg

(2) cos1gRv2

(3) 12v2Rg

(4) 12sin1gRv2

Subtopic:  Projectile Motion |
 64%
From NCERT
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If a body A of mass M is thrown with a velocity v at an angle of 30° to the horizontal and another body B of the same mass is thrown with the same speed at an angle of 60° to the horizontal. The ratio of horizontal range of A to B will be 

(1) 1 : 3

(2) 1 : 1

(3) 1:3

(4) 3:1

Subtopic:  Projectile Motion |
 76%
From NCERT
PMT - 1992
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Four bodies P, Q, R and S are projected with equal velocities having angles of projection 15o, 30o, 45o and 60o with the horizontal respectively. The body having the shortest range is? 

1. P 2. Q
3. R 4. S
Subtopic:  Projectile Motion |
 74%
From NCERT
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A stone projected with a velocity u at an angle θ with the horizontal reaches maximum height H1. When it is projected with velocity u at an angle π2θwith the horizontal, it reaches maximum height H2. The relation between the horizontal range of the projectile R and H1 & H2 is: 

1. \(R=4 \sqrt{H_1 H_2} \) 2. \(R=4\left(H_1-H_2\right) \)
3. \(R=4\left(H_1+H_2\right) \) 4. \(R=\frac{H_1{ }^2}{H_2{ }^2}\)
Subtopic:  Projectile Motion |
 83%
From NCERT
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Which of the following sets of factors will affect the horizontal distance covered by an athlete in a long–jump event?
1. speed before he jumps and his weight
2. the direction in which he leaps and the initial speed
3. the force with which he pushes the ground and his speed
4. none of the above

Subtopic:  Projectile Motion |
 62%
From NCERT
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In a projectile motion, velocity at maximum height is 

(1) ucosθ2

(2) ucosθ

(3) usinθ2

(4) None of these

Subtopic:  Projectile Motion |
 84%
From NCERT
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