MCQ
In a projectile motion, velocity at maximum height is
  • A
    $\frac{{u\,\cos \,\theta }}{2}$
  • $u\,\cos \,\theta $
  • C
    $\frac{{u\,\sin \,\theta }}{2}$
  • D
    None of these

Answer

Correct option: B.
$u\,\cos \,\theta $
b
(b)Only horizontal component of velocity $(u\cos \theta )$.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

The portion $A B$ of the curve representing the state of matter denotes
A block of mass $M$ is being pulled along rough horizontal surface. The coefficient of friction between the block and the surface is $\mu $. If another block of mass $M/2$ is placed on the block and it is again pulled on the surface, the coefficient of friction between the block and the surface will be
Two cars get closer by $8\,m$ every second while travelling in the opposite directions. They get closer by $0.8\,m$ in every second while travelling in the same direction. What are the speeds of the two cars ?
A massless rod $S$ having length $2I$ has equal point masses attached to its two ends as shown in figure. The rod is rotating about an axis passing through its centre and making angle $\alpha$ with the axis. The magnitude of change of momentum of rod i.e. $\left|\frac{ dL }{ dt }\right|$ equals
The dimension of where $\sqrt {\frac{\mu }{ \in }} $ is permeability $\& \varepsilon$ is permittivity is same as :
Resistance of a wire at $0^{\circ} \mathrm{C}, 100^{\circ} \mathrm{C}$ and $t^{\circ} \mathrm{C}$ is found to be $10 \Omega, 10.2 \Omega$ and $10.95 \Omega$ respectively. The temperature $t$ in Kelvin scale is $\qquad$
Which state of triply ionised Baryllium $(B{e^{ + + + }})$ has the same orbital radius as that of the ground state of hydrogen
A ball is thrown vertically upwards with a velocity of $19.6\,ms ^{-1}$ from the top of a tower. The ball strikes the ground after $6\,s$. The height from the ground up to which the ball can rise will be $\left(\frac{ k }{5}\right) m .$ The value of $k$ is ..... (use $g =9.8\,m / s ^{2}$)
The musical interval between two tones of frequencies $320 Hz$ and $240 Hz$ is
A uniform rod $AB$ of mass $m$ and length $l$ is hinged at its mid point $C$ . The left half $(AC)$ of the rod has linear charge density $-\lambda $ and the right half $(CB)$ has $+\lambda $  where $\lambda $ is constant . A large non conducting sheet of unirorm surface charge density $\sigma $ is also .present near the rod. Initially the rod is kept perpendicular to the sheet. The end $A$ of the rod is initially at a distance $d$ . Now the rod is rotated by a small angle in the plane of the paper and released. The time period of small angular oscillations is