A boy swings a yo-yo around his head with a force of 50N what is the gravitational force of the yo-yos mass and distance is doubled

Answer 1

Please check for typos and if you have presented the entire problem
Obviously if you double the mass you double the gravitational force.
Now do you maintain the same angle of the circumference to the hand?
do you still have 50 N or do you have a new angle and rotational speed?

Answer 2

60