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7. Maya is sitting in a wagon and asks her friends Jaleel and Sarah for a push. The drawing shows
the relevant forces in the system as Jaleel and Sarah begin to push the wagon with Maya inside.
Read each statement. Write your answers on the lines.
F₁
SN
F₂
12N
Describe the change in net force and motion when Jaleel and Sarah start pushing the wagon.
Predict what would happen to the motion of the wagon if Sarah got inside the wagon with Maya.
Use Newton's second law of motion to justify your answer.
Predict what would happen to the motion of the wagon if Sarah began pushing with a force of 12
N on the front of the wagon, opposite Jaleel. Use net force to explain your answer.


Sagot :