Which of the following statements are correct?A. Centre of mass of a body always coincides with ....

Channel:
Subscribers:
451,000
Published on ● Video Link: https://www.youtube.com/watch?v=-t4WTs6CVSA



Duration: 1:56
0 views
0


Which of the following statements are correct?A. Centre of mass of a body always coincides with the centre of gravity of the bodyB. Centre of gravity of a body is the point at which the total gravitational torque on the body is zeroC. A couple on a body produce both translational and rotational motion in a body.D. Mechanical advantage greater than one means that small effort can be used to lift a large load 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live




Other Videos By PW Solutions


2024-06-29Two spherical bodies of mass \(M\) and \(5 M\) and radii \(R\) and \(2 R\) are released in free ....
2024-06-29From a disc of radius \(R\) and mass \(M\), a circular hole of diameter \(R\), whose rim passes ....
2024-06-29Three identical spherical shells, each of mass \(m\) and radius \(r\) are placed as shown in fig....
2024-06-29A disk and a sphere of same radius but different masses roll off on two inclined planes of the s....
2024-06-29Two rotating bodies \(A\) and \(B\) of masses \(m\) and \(2 m\) with moments of inertia \(I _A\)....
2024-06-29A solid sphere of mass \(m\) and radius \(R\) is rotating about its diameter. A solid cylinder o....
2024-06-29Three objects, A : (a solid sphere), B : (a thin circular disk) and \(C\) : (a circular ring), e....
2024-06-29A light rod of length \(l\) has two masses \(m _1\) and \(m _2\) attached to its two ends. The m....
2024-06-29The rotational kinetic energy of a solid sphere of mass \(3 kg\) and radius \(0.2 m\) rolling do....
2024-06-29A thin uniform rod of mass ' \(M\) ' and length ' \(L\) ' is rotating about a perpendicular axis....
2024-06-29Which of the following statements are correct?A. Centre of mass of a body always coincides with ....
2024-06-29A rope is wound around a hollow cylinder of mass \(3 kg\) and radius \(40 cm\). What is the angu....
2024-06-29The moment of the force, \(\overrightarrow{ F }=4 \hat{ i }+5 \hat{ j }-6 \hat{ k }\) at \((2,0,....
2024-06-29A solid sphere is rotating freely about its symmetry axis in free space. The radius of the spher....
2024-06-29A solid sphere is in rolling motion. In rolling motion a body possesses translational kinetic en....
2024-06-29A solid cylinder of mass \(2 kg\) and radius \(4 cm\) is rotating about its axis at the rate of ....
2024-06-29The angular speed of the wheel of a vehicle is increased from \(360 rpm\) to \(1200 rpm\) in 14 ....
2024-06-29Find the torque about the origin when a force of \(3 \hat{j} N\) acts on a particle whose positi....
2024-06-29A uniform rod of length \(200 cm\) and mass \(500 g\) is balanced on a wedge placed at \(40 cm\)....
2024-06-29Two objects of mass \(10 kg\) and \(20 kg\) respectively are connected to the two ends of a rigi....
2024-06-29The ratio of the radius of gyration of a thin uniform disc about an axis passing through it cent....