Weighing Astronauts this procedure has actually been used to ''weigh'' astronauts in space. A 42.5-kg chair is

Question:

Weighing Astronauts this procedure has actually been used to ''weigh'' astronauts in space. A 42.5-kg chair is attached to a spring and allowed to oscillate. When it is empty, the chair takes 1.30 s to make one complete vibration. But with an astronaut sitting in it, with her feet off the floor, the chair takes 2.54 s for one cycle. What is the mass of the astronaut?