Download App

3.2 , motion in plane — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics3.2 , motion in plane1 Mark
MCQ
A stone is projected in air. Its time of flight is $3\,s$ and range is $150\,m$ Maximum height reached by the stone is $......\,m$ $\left(g=10\,ms ^{-2}\right)$
  • A
    $37.5$
  • B
    $22.5$
  • C
    $90$
  • ✓
    $11.25$
✓

Answer

Correct option: D.
$11.25$
d
(d)

$T=\frac{2 u_y}{g}=3$

$\therefore \quad u_y=15\,m / s$

Now,

$H=\frac{u_y^2}{2 g}=\frac{(15)^2}{20}=11.25\,m$

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

Explore more

More "M.C.Q (1 Marks)" from 3.2 , motion in plane→3.2 , motion in plane — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

From the top of a tower of height $40\, m$, a ball is projected upwards with a speed of $20\, m/s$ at an angle $30^o$ to the horizontal. The ball will hit the ground in time ......... $\sec$ (Take $g = 10\, m/s^2$)
→
A conical pendulum of length $1\,m$ makes an angle $\theta \, = 45^o$ w.r.t. $Z-$ axis and moves in a circle in the $XY$ plane.The radius of the circle is $0.4\, m$ and its centre is vertically below $O$. The speed of the pendulum, in its circular path, will be ..... $m/s$ (Take $g\, = 10\, ms^{-2}$)
→
If temperature of gas increases from $27°C$ to $927°C$ the $K.E.$ will be
→
If transmission power of a surface is $\frac{1}{9}$, reflective power is $\frac{1}{6}$, then what is its absorptive power?
→
The end correction of a resonance column is $1\,cm.$  If the shortest length resonating with the tuning fork is $10\,cm,$  the next resonating length should be ..... $cm$
→
If a body is in equilibrium under a set of non-collinear forces, then the minimum number of forces has to be
→
An insulator container contains $4\, moles$ of an ideal diatomic gas at temperature $T.$ Heat $Q$ is supplied to this gas, due to which $2 \,moles$ of the gas are dissociated into atoms but temperature of the gas remains constant. Then
→
A particle is projected horizontally from a tower with velocity $10\,m / s$. Taking $g=10\,m / s ^2$. Match the following two columns at time $t=1\,s$.
Column $I$ Column $II$
$(A)$ Horizontal component of velocity $(p)$ $5$ SI unit
$(B)$ Vertical component of velocity $(q)$ $10$ SI unit
$(C)$ Horizontal displacement $(r)$ $15$ SI unit
$(D)$ Vertical displacement $(s)$ $20$ SI unit
→
A wheel of mass $10\, kg$ has a moment of inertia of $160\, kg-m^2$ about its own axis, the radius of gyration will be ....... $m$
→
The area under acceleration-time graph gives
→