Question 28 What is the acceleration of the 50 kg crate in Question 27 above? 4 m/52 O 2 m/52 0 0 m/s2 O 9.8 m/$2 hs Question 29 A girl pulls on a 20 kg wagon and it accelerates at 2 m/$2. What is the Net Force on the wagon? O2N OON 20 N 40 N Question 30