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At the top of the trajectory of a projectile, the acceleration is 

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Important Questions on Kinematics

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 11
A ball is thrown at an angle of 60° to the horizontal. It falls on the ground at a distance of 90 m. If the ball is thrown with the same initial speed at an angle 30° to the vertical, it will fall on the ground at a distance of-
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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 12
A particle is projected under gravity at an angle of projection 45°. If for ground to ground projectile motion its range is 36 m. Then maximum height attained by particle-
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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 13
At what other angle of elevation, the range of a shell fired from a gun will be the same as that for an angle of elevation 5π36?
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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 14
When a body is thrown with a velocity u making an angle θ with the horizontal plane, the maximum distance covered by it in the horizontal direction is-
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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 15
The direction of motion of a projectile at the highest point of its trajectory becomes _____.
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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 16
Two particles are projected with the same initial velocity, one makes angle θ with vertical and another with horizontal. If their common range is R, then the product of their time of flight is directly proportional to
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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 17
Two projectiles of the same mass and with the same velocity are thrown at an angle 60° and 30° with the horizontal, then which will remain same?
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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 18
A particle of mass m is projected making angle 45° with horizontal having kinetic energy K. The kinetic energy at highest point will be -(Kinetic energy =12mv2)