MCQ
An object is moving with an initial velocity of $30ms^{-1}$ with uniform acceleration. The velocity of object increases to $40ms^{-1}$ in next $5s.$ The $v-t$ graph which least represents this situation is:
  • A
  • C
  • D
    None of the above.

Answer

Correct option: 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

The power of a sound from the speaker of a radio is $20 mW$. By turning the knob of the volume control, the power of the sound is increased to $400 mW.$ The power increase in decibels as compared to the original power is .... $dB$
A plane is in level flight at constant speed and each of its two wings has an area of $40 \mathrm{~m}^2$. If the speed of the air is $180 \mathrm{~km} / \mathrm{h}$ over the lower wing surface and $252 \mathrm{~km} / \mathrm{h}$ over the upper wing surface, the mass of the plane is______ $\mathrm{kg}$. (Take air density to be $1 \mathrm{~kg} \mathrm{~m}^{-3}$ and $\mathrm{g}=10 \mathrm{~ms}^{-2}$ )
A stone is dropped from the top of a building. When it crosses a point $5\, m$ below the top, another stone starts to fall from a point $25\, m$ below the top. Both stones reach the bottom of building simultaneously. The height of the building is ..... $m$.
$25$ tunning forks are arranged in series in the order of decreasing frequency. Any two successive forks produce $3\, beats/sec.$ If the frequency of the first turning fork is the octave of the last fork, then the frequency of the $21^{st}$ fork is .... $Hz$
The dimensions of surface tension are
A body is projected at $t = 0$ with a velocity $10\,ms^{-1}$ at an angle of $60^o$ with the horizontal. The radius of curvature of its trajectory at $t=1\,s$ is $R.$ Neglecting air resistance and taking acceleration due to gravity $g = 10\,ms^{-2},$ the radius of $R$ is   ........ $m$
The engine of a train sounds a whistle at frequency v. The frequency heard by a passenger is:
A liquid boils when its vapour pressure equals
Hanging in a spring m the period of oscillation of the mass is T. Oscillations are made by cutting the spring in half and hanging double the mass on it. Now the period of oscillation will be :
The minimum value of $‘F’$ so that block is in equilibrium is