At the top of the trajectory of a projectile, the directions of its velocity and acceleration are’
At the top of the trajectory of a projectile, the acceleration is
A ball is thrown at an angle of 30° to the horizontal. It falls on the ground at a distance of 90m. 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-
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.
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 5π/36 ?
The direction of motion of a projectile at the highest point of its trajectory becomes¬
Two particles are projected with same initial velocity, one makes angle θ with vertical and another with horizontal. If their common range is R, then product of their time of flight is directly proportional to
Two projectiles of same mass and with same velocity are thrown at an angle 60° and 30° with the horizontal, then which will remain same-
A particle of mass m is projected making angle 45º with horizontal having kinetic energy K. The kinetic energy at highest point will be - (Kinetic energy =1/2mv² )
If the horizontal range of a projectile is equal to the maximum height reached, then the corresponding angle of projection is -
A body is projected at such an angle that the horizontal range is three times the greatest height. The angle of projection is
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
The maximum range of a gun horizontal terrain is 16 km. If g = 10 m/s² what must be the muzzle velocity of the shell
If two projectiles are fired at the angles 30º and 60º respectively then the ratio of their horizontal ranges is
The time of flight of a projectile is 10s and range is 500m. Maximum height attained by it is-[g = 10 m/s²]
An arrow is shot in air, its time of flight is 5 sec and horizontal range is 200m. The inclination of the arrow with the horizontal is-
A ball of mass m is thrown vertically upwards, and at the same time another ball of mass 2m is thrown at an angle θ . If both the balls remain in our field of view for the same time, then the ratio of the maximum height attained by the balls is :
A body is projected with a velocity u. If the maximum height attained by it is half of its horizontal range, then its range must be :
The velocity at the maximum height of a projectile is half its initial velocity of projection u. Then its horizontal range is
Three balls of same mass are thrown with equal speeds at angle 15°, 45°, 75° and their ranges are respectively R15, R45 and R75, then :
