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

English

Gujarati

Hindi

3-2.Motion in Plane

normal

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

Solution

Since horizontal component of velocity is constant, hence momentum is constant

Standard 11

Physics

Share

Similar Questions

A body slides down a frictionless track which ends in a circular loop of diameter $D$, then the minimum height $h$ of the body in term of $D$ so that it may just complete the loop, is

normal

ball is thrown from a point with a speed $‘v_0$’ at an elevation angle of $\theta $ . From the same point and at the same instant, a person starts running with a constant speed $\frac{{'{v_0}'}}{2}$ to catch the ball. Will the person be able to catch the ball? If yes, what should be the angle of projection $\theta $ ?

normal

Four bodies $P, Q, R$ and $S$ are projected with equal velocities having angles of projection $15^{\circ}, 30^{\circ}, 45^{\circ}$ and $60^{\circ}$ with the horizontals respectively. The body having shortest range is

normal

A projectile is projected with speed $u$ of an angle of $60^o$ with horizontal from the foot of an inclined plane. If the projectile hits the inclined plane horizontally, the range on inclined plane will be :-

normal

A body of mass $m\, kg$ is rotating in a vertical circle at the end of a string of length $r$ metre. The difference in the kinetic energy at the top and the bottom of the circle is

normal