Question
A particle is acted upon by a force whose component's variations with time are shown in diagrams. Then the magnitude of change in momentum of the particle in $0.1\,\,sec$ will be :-
✓
Answer
$\Delta p_{x}=3 \mathrm{NS}$
$\Delta p_{y}=4 \mathrm{NS}$
$\Delta p_{z}=-5 N S$
$\Delta p=\sqrt{3^{2}+4^{2}+5^{2}}=5 \sqrt{2} \mathrm{NS}$
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
A sphere of mass $M$ and radius $r$ slips on a rough horizontal plane. At some instant it has translational velocity $V_0$ and rotational velocity about the centre $\frac{V_0}{2r}$ . The translational velocity when the sphere starts pure rolling motion is
→When light is refracted from air into glass
For a satellite moving in an orbit around the earth, the ratio of kinetic energy to potential energy is
A triangular shaped wire carrying $10 A$ current is placed in a uniform magnetic field of $0.5\,T$, as shown in figure. The magnetic force on segment $CD$ is $....N$ $($ Given $BC = CD = BD =5\,cm )$.
→The total charge induced in a conducting loop when it is moved in magnetic field depend on
The pressure $P_{1}$ and density $d_{1}$ of diatomic gas $\left(\gamma=\frac{7}{5}\right)$ changes suddenly to $P _{2}\left(> P _{1}\right)$ and $d _{2}$ respectively during an adiabatic process. The temperature of the gas increases and becomes $......$ times of its initial temperature.$\left(\right.$ given $\left.\frac{ d _{2}}{ d _{1}}=32\right)$
→The wavelengths involved in the spectrum of deuterium $(_1^2D)$ are slightly different from that of hydrogen spectrum, because
→The maximum static frictional force is
A camera filled with a polariser is placed on a mountain, in a manner to record only the reflected image of the sun from the surface of a sea as shown in the figure. If the sun rises at $6.00 \,AM$ and sets at $6.00 \,PM$ during the summer, then at .......... $PM$ time in the afternoon will the recorded image have the lowest intensity, assuming there are no clouds and intensity of the sun at the sea surface is constant throughout the day? (Refractive index of water $=1.33)$
→A particle starting from rest, moves in a circle of radius $r$. It attains a velocity of $\mathrm{V}_{0} \;\mathrm{m} / \mathrm{s}$ in the $\mathrm{n}^{\text {th }}$ round. Its angular acceleration will be
→