A point object of mass M is projected with a speed $10m{s}^{-1}$ at an angle ${60}^o$ with the horizontal. The speed at the highest point of its trajectory is.

Q. A ball of mass $160g$ is thrown up at an angle of ${60}^o$ to the horizontal at a speed of $10m{s}^{-1}$. The angular momentum of the ball at the highest point of the trajectory with respect to the point from which the ball is thrown is nearly: $(g=10m{s}^{-2})$

Q. A projectile is thrown with a velocity of $10m{s}^{-1}$ at an angle of ${60}^o$ with horizontal .velocity at the highest point is?

Q. A particle is projected at an angle of ${60}^{\circ }$ above the horizontal with a speed of $10m/s$. After some time, the direction of its velocity makes an angle of ${30}^{\circ }$ above the horizontal. The speed of the particle at this instant is

Q. A body of mass $1kg$ is thrown with a velocity of $10{ms}^{-1}$ at an angle of ${60}^{\circ }$ with the horizontal. Its momentum at the highest point is:

Q. A projectile is projected at $10m{s}^{-1}$ by making at an angle ${60}^o$ to the horizontal. After some time its velocity makes an angle of ${30}^o$ to the horizontal. Its speed at this instant is.