1
COMEDK 2024 Morning Shift
+1
-0

Which of the following graph shows the variation of velocity with mass for the constant momentum?

A
Fig 3
B
Fig 1
C
Fig 2
D
Fig 4
2
COMEDK 2024 Morning Shift
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-0

Which of the following statement is true regarding the centre of mass of a system?

A
The centre of mass depends on the size and shape but does not depend on the distribution of mass of the body.
B
The centre of mass depends on the coordinate system.
C
The centre of mass of a system depends on the size and shape of the body but independent of the co-ordinate system
D
The centre of mass of a body always lies inside the body.
3
COMEDK 2023 Morning Shift
+1
-0

In the figure, pendulum bob on left side is pulled a side to a height $$h$$ from its initial position. After it is released it collides with the right pendulum bob at rest, which is of same mass. After the collision, the two bobs stick together and rise to a height

A
$$\frac{3 h}{4}$$
B
$$\frac{2 h}{3}$$
C
$$\frac{h}{2}$$
D
$$\frac{h}{4}$$
4
COMEDK 2023 Morning Shift
+1
-0

In the diagram shown below, $$m_1$$ and $$m_2$$ are the masses of two particles and $$x_1$$ and $$x_2$$ are their respective distances from the origin $$O$$.

The centre of mass of the system is

A
$$\frac{m_1 x_2+m_2 x_2}{m_1+m_2}$$
B
$$\frac{m_1+m_2}{2}$$
C
$$\frac{m_1 x_1+m_2 x_2}{m_1+m_2}$$
D
$$\frac{m_1 m_2+x_1 x_2}{m_1+m_2}$$
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