Two masses m1=5.9kg and m2=4.7kg are attached to each other as shown in the figure below. The combination is moving on horizontal circular paths (without friction) as shown since they are also tied to a pole. The strings connecting m1 to m2, and m2 to the pole both have the same length l=2.9m. During the motion, two strings are always collinear (on the same line) as shown. If m2 is moving with a speed of v=3.8m/s, determine the tension on the string 2. Use SI units and express your answer with zero decimal places. (Hint: Both masses should have the same period.)
Rigid Body
A rigid body is an object which does not change its shape or undergo any significant deformation due to an external force or movement. Mathematically speaking, the distance between any two points inside the body doesn't change in any situation.
Rigid Body Dynamics
Rigid bodies are defined as inelastic shapes with negligible deformation, giving them an unchanging center of mass. It is also generally assumed that the mass of a rigid body is uniformly distributed. This property of rigid bodies comes in handy when we deal with concepts like momentum, angular momentum, force and torque. The study of these properties – viz., force, torque, momentum, and angular momentum – of a rigid body, is collectively known as rigid body dynamics (RBD).
Two masses m1=5.9kg and m2=4.7kg are attached to each other as shown in the figure below. The combination is moving on horizontal circular paths (without friction) as shown since they are also tied to a pole. The strings connecting m1 to m2, and m2 to the pole both have the same length l=2.9m. During the motion, two strings are always collinear (on the same line) as shown. If m2 is moving with a speed of v=3.8m/s, determine the tension on the string 2. Use SI units and express your answer with zero decimal places. (Hint: Both masses should have the same period.)
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