AP Physics Unit 2 Progress Check MCQ Part B Exam questions and answers Graded A+

AP Physics Unit 2 Progress Check MCQ Part B Exam questions and answers Graded A+ Three boxes are pulled to the left by strings with negligible mass on a horizontal surface, as shown above. The masses of the boxes are m1, m2, and m3, where m3m2m1. Friction between the boxes and the surface is negligible. The figure below shows force diagrams for each box. Given that m3m2m1, how do the force F and string tensions TAand TB compare? - ☑ ☑ TbtaF Three boxes are pulled to the left by strings with negligible mass on a horizontal surface, as shown above. The masses of the boxes are m1, m2, and m3, where m3m2m1. Friction between the boxes and the surface is negligible. The figure below shows force diagrams for each box. Which of the following is a correct ranking of the normal forces Fn1, Fn2, and Fn3 exerted on the boxes? - ☑ Fn3Fn2Fn1 Three boxes are pulled to the left by strings with negligible mass on a horizontal surface, as shown a