Medium
Explain why bullets of a gun are cylindrical in shape.
(N/A) spinning cylinder moves in a straight path along the direction of its rotational axis. Because of this symmetry,the Magnus effect (which causes lateral force on a spinning object moving through a fluid) is effectively neutralized or balanced,preventing the bullet from deviating from its intended trajectory. For this reason,bullets are designed to be cylindrical.
Explore More
Similar Questions
We are able to squeeze snow and make balls out of it because of
DifficultKVPY 2009
View SolutionTwo cylindrical vessels of equal cross-sectional area of $2 \ m^2$ contain water up to heights of $10 \ m$ and $6 \ m$,respectively. If the vessels are connected at their bottom,then the work done by the force of gravity is (Density of water is $10^3 \ kg/m^3$ and $g = 10 \ m/s^2$):
$A$ liquid kept in a cylindrical vessel is rotated about a vertical axis passing through the center of the circular base. The difference in the heights of the liquid at the center of the vessel and its edge is ($R=$ radius of vessel,$\omega=$ angular velocity of rotation,$g=$ acceleration due to gravity).
DifficultMHT CET 2020
View SolutionGiven below are two statements:
Statement $I$: When the speed of a liquid is zero everywhere,the pressure difference at any two points depends on the equation $P_1-P_2=\rho g(h_2-h_1)$.
Statement $II$: In the venturi tube shown,$2gh=v_2^2-v_1^2$.
In the light of the above statements,choose the most appropriate answer from the options given below.
Statement $I$: When the speed of a liquid is zero everywhere,the pressure difference at any two points depends on the equation $P_1-P_2=\rho g(h_2-h_1)$.
Statement $II$: In the venturi tube shown,$2gh=v_2^2-v_1^2$.
In the light of the above statements,choose the most appropriate answer from the options given below.
DifficultJEE MAIN 2024
View SolutionMatch column-$I$ with column-$II$.
Column-$I$ Column-$II$ $(A)$ Hydraulic lift $(P)$ Archimedes' principle $(B)$ Razor blade can be made to float on the surface of water $(Q)$ Pascal's law $(C)$ The dam of a reservoir is made thick at the bottom $(R)$ Surface tension $(D)$ Ship is floating on the ocean $(S)$ Pressure
| Column-$I$ | Column-$II$ |
|---|---|
| $(A)$ Hydraulic lift | $(P)$ Archimedes' principle |
| $(B)$ Razor blade can be made to float on the surface of water | $(Q)$ Pascal's law |
| $(C)$ The dam of a reservoir is made thick at the bottom | $(R)$ Surface tension |
| $(D)$ Ship is floating on the ocean | $(S)$ Pressure |
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo