Welcome to your Rotational Motion -4
1.
COM of a hollow sphere lies
2.
Two equal masses rotate about each other. COM is
3.
If m₁x₁ + m₂x₂ = 0, COM lies
4.
Two masses m and 3m are separated by distance d. Distance of COM from m is
5.
COM of a uniform square lamina lies at
6.
A projectile explodes at the highest point. COM
7.
A uniform rod of length L lies along x-axis. COM is at
8.
COM of a uniform triangular lamina lies at
9.
COM of a system can lie
10.
COM of a triangular wire frame lies at
11.
If one particle is removed from system, COM
12.
A particle explodes into two equal fragments in space. COM
13.
COM of an L-shaped uniform wire lies
14.
Equal masses at vertices of a square have COM at
15.
For a continuous mass distribution, COM is calculated using
16.
COM of a thin uniform rod is independent of
17.
Two particles of equal mass are separated by distance d. COM is
18.
Two particles of masses 2 kg and 6 kg are placed at x = 0 m and x = 4 m. Find COM.
19.
Vector form of COM is given by
20.
In absence of external force, COM
21.
If origin is at the COM of a system, then ∑mᵢrᵢ equals
22.
Masses m, 2m, 3m are at x = 0, a, 2a. COM is at
23.
Centre of mass depends on
24.
COM of a uniform semicircular disc lies on
25.
If ∑mᵢxᵢ = 0, COM lies
26.
If mass density is doubled everywhere, COM
27.
COM of a uniform cube lies at
28.
COM of a uniform ring lies at
29.
COM of a solid hemisphere of radius R lies at
30.
COM of a semicircular lamina of radius R lies at
31.
A system of particles experiences only internal forces. Motion of COM is
32.
Two particles repel each other due to internal force. COM
33.
On changing the origin, COM coordinates
34.
Three equal masses are placed at x = 1 m, 3 m and 5 m. COM lies at
35.
A uniform disc has a concentric circular hole removed. COM
36.
COM of a uniform disc with off-centre hole lies
37.
COM of an isolated system always moves
38.
COM of non-uniform rod lies
39.
COM of a perfectly symmetric body lies
40.
A system has total mass zero. COM is
41.
COM of a rod with linearly increasing density lies
42.
If all particles lie in x–y plane, COM lies
43.
A uniform rod bent into a semicircle has COM at
44.
Masses 1 kg, 2 kg and 3 kg are at vertices of an equilateral triangle. COM is
45.
COM of a uniform circular wire lies at
