A particle of mass m is projected from the surface of earth with velocity v0 at angle - with horizontal- Suppose h be the maximum height of particle from surface of earth and v its speed at that point then v is-

A particle having mass $m$ is projected with a velocity $v_{0}$ from a point $P$ on a horizontal ground making an angle $θ$ with horizontal. Find out the torque about the point of projection acting on the particle when it is at its maximum height?

Q. Single Correct Answer Type
A particle is projected from the ground with an initial speed of 'v' at angle

θ

with horizontal. the average velocity of the particle between its point of projection and height point of trajectory is

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A particle of mass m is projected from the surface of earth with velocity v0 at angle Θ with horizontal. Suppose h be the maximum height of particle from surface of earth and v its speed at that point then v is.

The correct option is D <v0cosθVelocity perpendicular to the radial direction initially=v0cosθFinal velocity is v perpendicular to the radial direction.From conservation of angular momentum,m(v0cosθ)R=mvr⟹v=Rrv0cosθSince r>R⟹v<v0cosθ

A particle of mass $m$ is projected from the surface of earth with velocity $v_{0}$ at angle $Θ$ with horizontal. Suppose $h$ be the maximum height of particle from surface of earth and $v$ its speed at that point then $v$ is.