Center of Mass [JEE (Based on NTA Guidelines-IIT Engg.) Mains Physics]: Questions 1 - 3 of 8
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Question 1
Appeared in Year: 2016
Question MCQ▾
A light rod of length has two masses and attached to its two ends. The moment of inertia of the system about an axis perpendicular to the road and passing through the centre of mass is:
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 2
Appeared in Year: 2017
Question MCQ▾
Which of the following statements are correct?
- Center of mass of a body always coincides with the centre of gravity of the body.
- Center of mass of a body is the point at which the total gravitational torque on the body is zero
- A couple on a body produce both translational and rotational motion in a body.
- Mechanical advantage greater that one means that small effort can be used to lift a large load.
Choices
Choice (4) | Response | |
---|---|---|
a. | 2 and 3 | |
b. | 2 and 4 | |
c. | 3 and 4 | |
d. | 1 and 2 |
Question 3
Appeared in Year: 2008
Question MCQ▾
A thin rod of length is lying along the x-axis with its ends at and . Its linear density (mass/length) varies with as where can be zero or any positive number. If the position of the centre of mass of the rod is plotted against , which of the following graphs best approximates the dependence of on ? (AIEEE)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |