The ramp with a girl and a guy sitting on it is supported in the middle (pivot point) and it is balanced (does not start rotation). a. (10 points) The girl's weight is 300 N. Calculate the torque she is applying on the ramp choosing the center of rotation as the pivot point (the midpoint of the ramp). Show calculations. Do not forget to include the correct unit for the torque. b. (10 points) Knowing that the boy is sitting 1.5 m away from the midpoint, determine his weight. Show calculations. (please type or write clearly)

4 m 3 m. 5 m