This question also refers to the situation in Figure 1. There is no friction between the cart and the floor. The book moves with the cart with no sliding between the book and the surface of the cart. The cart has a mass of 12.7 kilograms and the book has a mass of 2.28 kilograms. The coefficient of static friction between the book and the cart is 0.42. The coefficient of kinetic friction between the book and the cart is 0.21. As Adam pushes the cart for a distance d, of 2.8 meters, the cart accelerates to the right with a constant acceleration of 1.2 meters per second squared. For the purposes of this problem, the acceleration of objects in freefall is g = 9.81 m/s². Calculate the work in joules that Adam (only Adam) did on the cart (only the cart) as it moved to the right a distance di meters. The sign (positive or negative) is important.
This question also refers to the situation in Figure 1. There is no friction between the cart and the floor. The book moves with the cart with no sliding between the book and the surface of the cart. The cart has a mass of 12.7 kilograms and the book has a mass of 2.28 kilograms. The coefficient of static friction between the book and the cart is 0.42. The coefficient of kinetic friction between the book and the cart is 0.21. As Adam pushes the cart for a distance d, of 2.8 meters, the cart accelerates to the right with a constant acceleration of 1.2 meters per second squared. For the purposes of this problem, the acceleration of objects in freefall is g = 9.81 m/s². Calculate the work in joules that Adam (only Adam) did on the cart (only the cart) as it moved to the right a distance di meters. The sign (positive or negative) is important.
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Transcribed Image Text:Figure 1
The diagram above (Figure 1) shows the situation for
the three questions below (questions 1, 2, and 3). The
numbers will change in each question but the situation
is the same. Adam is pushing a cart which rolls on the
floor with negligible friction. There is a book on top of
the cart. The book moves with the cart (the book does
not slide on the surface of the cart).
Transcribed Image Text:This question also refers to the situation in Figure 1.
There is no friction between the cart and the floor. The
book moves with the cart with no sliding between the
book and the surface of the cart. The cart has a mass of
12.7 kilograms and the book has a mass of 2.28
kilograms.
The coefficient of static friction between the book and
the cart is 0.42. The coefficient of kinetic friction
between the book and the cart is 0.21.
As Adam pushes the cart for a distance d; of 2.8
meters, the cart accelerates to the right with a constant
acceleration of 1.2 meters per second squared. For the
purposes of this problem, the acceleration of objects in
freefall is g = 9.81 m/s?.
Calculate the work in joules that Adam (only Adam) did
on the cart (only the cart) as it moved to the right a
distance di meters. The sign (positive or negative) is
important.
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