Could someone please help with #5 and #6

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?

Which best describes what forms in nuclear fission? a. two smaller, more stable nucleib. two larger, less stable nucleic. one smaller, less stable nucleusd. one larger, more stable nucleus