Question
Mary applies a force of 79 N to push a box with an acceleration of 0.41 m/s 2 . When she increases the pushing force
Mary applies a force of 79 N to push a box with an acceleration of 0.41 m/s2. When she increases the pushing force to 89 N, the box's acceleration changes to 0.67 m/s2. There is a constant friction force present between the floor and the box.
(a)What is the mass of the box in kilograms? kg
(b)What is the coefficient of kinetic friction between the floor and the box
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Complete Physics For Cambridge IGCSE RG
Authors: Stephen Pople
3rd Edition
019830871X, 978-0198308713
