SATHEE: Rotational Motion Question 153

Rotational Motion Question 153

Question: A system consists of three particles, each of mass m and located at (l, 1), (2, 2) and (3, 3). The co- ordinates of the centre of mass are

Options:

A) (1, 1)

B) (2, 2)

C) (3, 3)

D) (6, 6)

Show Answer

Answer:

Correct Answer: B

Solution:

[b] The coordinates of C.M of three particle are

$x = \frac{m_{1} x_{1} + m_{2} x_{2} + m_{3} x_{3}}{m_{1} + m_{2} + m_{3}}$ and

$y = \frac{m_{1} y_{1} + m_{2} y_{2} + m_{3} y_{3}}{m_{1} + m_{2} + m_{3}}$

here

$m_{1} = m_{2} = m_{3} = m$

$x = \frac{(x_{1} + x_{2} + x_{3}) m}{m + m + m} = 2$

$y = \frac{(y_{1} + y_{2} + y_{3})}{m + m + m} = 2$

So coordinates of C.M.of three particle are (2,2)

Rotational Motion Question 153

Question: A system consists of three particles, each of mass m and located at (l, 1), (2, 2) and (3, 3). The co- ordinates of the centre of mass are

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

Rotational Motion Question 153

Question: A system consists of three particles, each of mass m and located at (l, 1), (2, 2) and (3, 3). The co- ordinates of the centre of mass are

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

Menu