MCQ
Which of the following velocity-time graphs is physically not possible?
- A
- B
- C
- ✓
✓
Answer
Correct option: D.
d
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
If the resultant of all the external forces acting on a system of particles is zero, then from an inertial frame, one can surely say that
The gravitational potential energy of a system consisting of two particles separated by a distance r is:
Two communicating vessels contain mercury. The diameter of one vessel is $n$ times larger than the diameter of the other. A column of water of height $ h$ is poured into the left vessel. The mercury level will rise in the right-hand vessel ($s =$ relative density of mercury and $\rho = $ density of water) by
→If the angular momentum of a rotating body is increased by $200\ \%$, then its kinetic energy of rotation will be increased by .......... $\%$
→According to Newton, the viscous force acting between liquid layers of area $A$ and velocity gradient $\Delta v/\Delta z$ is given by $F = - \eta A\frac{{\Delta v}}{{\Delta z}}$ where $\eta $ is constant called coefficient of viscosity. The dimension of $\eta $ are
→$S.I.$ unit of universal gas constant is
→An empty balloon weighs $1\, g$. The balloon is filled with water to the neck and tied with a massless thread. The weight of balloon alongwith water is $101\, g$. The balloon filled with water is weighed when fully immersed. Then, its weight in water is ...... $g$
→In which of the following decays the element does not change?
→-
$\alpha-\text{decay}$
-
$\beta^+-\text{decay}$
-
$\beta^--\text{decay}$
-
$\gamma-\text{decay}$
Mark the wrong statement
A particle $P$ moving with speed $v$ undergoes a head -on elastic collision with another particle $Q$ of identical mass but at rest. After the collision
→