Find out the masses of the fragments

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Q. An unstable particle with a mass equal to 3.34 multiplied by 10-27 kg is initially at rest. The particle decays into two fragments that fly off with velocities of 0.990c and -0.865c, respectively. Find the masses of the fragments.

Q. A 3.00-m-long, 400 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 74.0 kg construction worker stands at the far end of the beam.What is the magnitude of the torque about the point where the beam is bolted into place?

Reference no: EM1348164

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