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Task For each problem below, create a I Sketch Qualitative description of motion {in words} Force diagram I freebody diagram Summed forces in both x

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Task For each problem below, create a I Sketch Qualitative description of motion {in words} Force diagram I freebody diagram Summed forces in both x and yr directions full solution [i.e. showing all stesz to the problem using appropriate notation and units. Assumptions assume the positive directions are upwards, fo rwards, to the right, N and E. upwardsI forwards, N and E are always drawn to the right. air resistance is negligible. the gravitational field strength on Earth, 9, is 3.8 ms2 and has 2 significant digits. SET 2 - Select 1 Problem to Submit Sample A 10 kg box that is no longer being pushed along the floor is moving forwards along the floor. The coefficient of friction between the box and the floor is 0.40. What is the resulting acceleration of the box after the push? Sketch Description of motion V2 The box slows down forwards. V1 Free body diagram Summed forces FN Ff EF, = -Fx = max EF = -F + FN = ma, = 0 Fg Solution 1. Horizontal net force 2. Vertical net force 3. Substitute and solve F = F. EF = -F + FN = may = 0 EF. = -FK = ma, 1 = - -F + FN = 0 =-F 1 =- - ma =- UF. FN = FB 1 =- ug F = mg a =- (0. 40) (9. 8m/s ) 1 =- m a =- 3.9m/s a = 3.9m/s [back]Problems 4. You are pushing a 2.1 kg stack of plates north with a force of [3.2 N. The plates slide along a table. The coefficient of kinetic friction between the plates and the table is 0.15. Determine the net horizontal force on the plates. Select the sketch that best matches the one you drew. SKETCHES Cheese 1' 12 Motion Description 12 points speeds slows moves speeds up slows down at a forwards backwards to the to th up from down and constant north sout rest stops speed The objectSelect the force diagram that best matches the one you drew. 6 points Force Diagrams 1 2 3 4 a b C ChooseIdentify the directions of the forces in your force diagram. 6 points 8 2 7 3 6 4 5 none Fg O O O O FK 0 O O FS O O O O FN O O FT O O O 0 O Fapp 0Summed Forces 12 points no +Fg -Fg +FK -FK +FS -FS +FN -FN +F forces EFX = ? EFy = ? 0 0 0 0 0

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