(C) In projectile motion,there is no external horizontal force acting on the object (ignoring air resistance). According to Newton's second law,if the

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Horizontal component of momentum will be conserved.

(C) In projectile motion,there is no external horizontal force acting on the object (ignoring air resistance). According to Newton's second law,if the net external force in a direction is zero,the momentum in that direction remains constant. Since the horizontal component of velocity $v_x = V_0 \cos(30^o)$ remains constant throughout the flight,the horizontal component of momentum $p_x = m v_x$ is conserved. Therefore,the correct statement is that the horizontal component of momentum will be conserved.

Class 11 Physics 3-2.Motion in Plane Horizontal Projectile Motion

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$A$ ball is projected with velocity $V_0$ at an angle of elevation $30^o$. Mark the correct statement.

A
Kinetic energy will be zero at the highest point of the trajectory.
B
Vertical component of momentum will be conserved.
C
Horizontal component of momentum will be conserved.
D
Gravitational potential energy will be minimum at the highest point of the trajectory.

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3-2.Motion in Plane

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Horizontal Projectile Motion

The trajectory of a projectile projected from the origin is given by the equation $y = x - \frac{2x^2}{5}$. The initial velocity of the projectile is:

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$A$ particle of mass $m$ is projected with velocity $v$ making an angle of $45^{\circ}$ with the horizontal. When the particle lands on the level ground,the magnitude of the change in its momentum will be

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The angle of projection for a projectile to have the same horizontal range and maximum height is

DifficultJEE MAIN 2024

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Two particles $A$ and $B$ are projected simultaneously from a fixed point on the ground. Particle $A$ is projected on a smooth horizontal surface with speed $v$,while particle $B$ is projected in air with speed $\frac{2v}{\sqrt{3}}$. If particle $B$ hits particle $A$,the angle of projection of $B$ with the vertical is

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The initial speed of a bullet fired from a rifle is $630 \; m/s$. The rifle is fired at the center of a target $700 \; m$ away at the same level as the target. How far above the center of the target (in $m$) must the rifle be aimed in order to hit the target? (Take $g = 10 \; m/s^2$)

DifficultJEE MAIN 2014

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$A$ ball is projected with velocity $V_0$ at an angle of elevation $30^o$. Mark the correct statement.

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The trajectory of a projectile projected from the origin is given by the equation $y = x - \frac{2x^2}{5}$. The initial velocity of the projectile is:

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