4) Find the magnitude and direction of the net force of the three force vectors , B, and &, shown in the figure. These vectors

4) Find the magnitude and direction of the net force of the three force vectors À, B, and &, shown in the figure. These vectors have the following magnitudes: A = 5.0 N, B = 7.9 N, and C = 8.0 N. What is the magnitude and direction of the resultant? 
Express the direction of the resultant by specifying the angle it makes with the +x-axis, with counterclockwise angles taken to be positive.

 

5) A merry-go-round is rotating at constant speed. A child is sitting at the edge of the merry-go-round.

 

A) What is the direction of the acceleration, if any?

 

B) If the child moves closer to the center of the merry-go-round, how does the acceleration change?

120 C