A student plays on a see-saw with her experimental android robot, Robby. The student has a weight of 300 N and is seated 2.8 m from the axis of rotation. Robby balances her when he is seated 0.7 m from the axis. Robby's weight is
A) 1000 N.
B) 500 N.
C) 667 N.
D) 725 N.
E) 1200 N.

Question

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The Answer of A student plays on a see-saw with her experimental android robot, Robby. The student has a weight of 300 N and is seated 2.8 m from the axis of rotation. Robby balances her when he is seated 0.7 m from the axis. Robby's weight is
A) 1000 N.
B) 500 N.
C) 667 N.
D) 725 N.
E) 1200 N.

A Student Plays on a See-Saw with Her Experimental Android