MCQ
A ladder is leaned against a smooth wall and it is allowed to slip on a frictionless floor. Which figure represents trace of its centre of mass?
- A
- B
- C
- 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
Which of the following is the graph showing stress-strain variation for elastomers?
There is some liquid in a closed bottle. The amount of liquid is continuously decreasing. The vapour in the remaining part:
In the system shown in figure pulleys and strings are ideal. Acceleration of $m_1\ w.r.t.\ m_2$ is $(m_1 = 2\ kg\ ; m_2 = 2\ kg)$
→A mixture of two moles of hydrogen and one mole of argon gas is taken in a closed container at room temperature. Consider the following two statements
→$(i)$ The average kinetic energy of each molecule of $H_2$ and $Ar$ are the same.
$(ii)$ The partial pressure due to argon gas is more than that due to hydrogen gas
Two discs of same mass and different radii are made of different materials such that their thicknesses are $1\,cm$ and $0.5\,cm$ respectively. The densities of materials are in the ratio $3: 5$. The moment of inertia of these discs respectively about their diameters will be in the ratio of $\frac{x}{6}$. The value of $x$ is $.......$.
→An expression for a dimensionless quantity $P$ is given by $P=\frac{\alpha}{\beta} \log _{e}\left(\frac{ kt }{\beta x }\right)$; where $\alpha$ and $\beta$ are constants, $x$ is distance ; $k$ is Boltzmann constant and $t$ is the temperature. Then the dimensions of $\alpha$ will be
→The equation of the propagating wave is $y = 25\sin (20t + 5x),$ where $y$ is displacement. Which of the following statement is not true
→$v^2$ versus $s$-graph of a particle moving in a straight line is as shown in figure. From the graph some conclusions are drawn. State which statement is wrong?
→Two springs have their force constant as $k_1$ and $k_2 (k_1 > k_2)$. when they are stretched by the same force
→Two constant forces ${F_1} = 2\hat i - 3\hat j + 3\hat k\,$($N$) and ${F_2} = \hat i + \hat j - 2\hat k\,$($N$) act on a body and displace it from the position ${r_1} = \hat i + 2\hat j - 2\hat k\,$($m$) to the position ${r_2} = 7\hat i + 10\hat j + 5\hat k\,$($m$). What is the work done......... $J$
→