Center of MassHardBloom L3
Question
A non–zero external force acts on a system of particles. The velocity and acceleration of the centre of mass are found to be v0 and aC respectively at any instant t. It is possible that
Options
A.(iii) and (iv) are true.
B.(i) and (ii) are true.
C.(i) and (iii) are true.
D.(ii), (iii) and (iv) are true.
Solution
Sol. ${\bar{F}}_{ext} \neq 0 \Rightarrow {\bar{a}}_{cm} \neq 0$
${\bar{V}}_{cm}(t)$may of may not be zero at any instant.
Create a free account to view solution
View Solution FreeMore Center of Mass Questions
A uniform solid cone of height 40 cm is shown in figure. The distance of centre of mass of the cone from point B (centre...A uniform rope of linear mass density λ and length l is coiled on a smooth horizontal surface. One end is pulled up...Two perfectly elastic balls of same mass m are moving with velocities u1 and u2. They collide elastically n times. The k...A thick uniform wire is bent into the shape of the letter “U” as shown. Which point indicates the location of the center...Two particles approach each other with different velocities. After collision, one of the particles has a momentum in the...