MCQ
A projectile crosses two walls of equal height $H$ symmetrically as shown The maximum height of the projectile is  ........ $m$
  • A
    $120 $
  • $80$
  • C
    $160$
  • D
    cannot be obtained

Answer

Correct option: B.
$80$
b

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

A flywheel is making $\frac{3000}{\pi}$ revolutions per minute about its axis. If the  moment of inertia of the flywheel about that axis is $400\, kgm^2$, its rotational kinetic  energy is 
A wooden block, initially at rest on the ground, is pushed by a force which increases linearly with time $t$. Which of the following curve best describes acceleration of the block with time :
If separation between screen and source is increased by $2\%$ what would be the effect on the intensity
A particle starting from the origin $(0,0)$ moves in a straight line in the $(x, y)$ plane. Its coordinates at a later time are $(\sqrt 3,3)$ . The path of the particle makes with the $x -$ axis an angle of  ....... $^o$
A particle moves in a circle of radius $5 \;cm$ with constant speed and time period $0.2 \pi\; sec$. The acceleration of the particle is .... $m/sec^2$
Ice is used in a cooler in order to cool its contents. Which of the following will speed up the cooling process?
A pendulum clock that keeps correct time on the earth is taken to the moon it will run (it is given that $g_{Moon} = g_{Earth}/6$ )
A wave is reflected from a rigid support. The change in phase on reflection will be
An expression of energy density is given by $u=\frac{\alpha}{\beta} \sin \left(\frac{\alpha x}{k t}\right)$, where $\alpha, \beta$ are constants, $x$ is displacement, $k$ is Boltzmann constant and $t$ is the temperature. The dimensions of $\beta$ will be.
A train is moving towards east and a car is along north, both with same speed. The observed direction of car to the passenger in the train is