Unlimited Overhang Four identical textbooks, each of length L , are stacked near the edge of a table, as shown in Figure 9-45. The books are stacked in such a way that the distance they overhang the edge of the table, d , is maximized Find the maximum overhang distance d in terms of L In particular show that d > L that is. the top book is completely to the right of the table edge (In principle. the overhang distance d can be made as large as desired simply by increasing the number of books in the stack ) Figure 9-45 Problem 82
Unlimited Overhang Four identical textbooks, each of length L , are stacked near the edge of a table, as shown in Figure 9-45. The books are stacked in such a way that the distance they overhang the edge of the table, d , is maximized Find the maximum overhang distance d in terms of L In particular show that d > L that is. the top book is completely to the right of the table edge (In principle. the overhang distance d can be made as large as desired simply by increasing the number of books in the stack ) Figure 9-45 Problem 82
Unlimited Overhang Four identical textbooks, each of length L, are stacked near the edge of a table, as shown in Figure 9-45. The books are stacked in such a way that the distance they overhang the edge of the table, d, is maximized Find the maximum overhang distance d in terms of L In particular show that d > L that is. the top book is completely to the right of the table edge (In principle. the overhang distance d can be made as large as desired simply by increasing the number of books in the stack )
A steel ladder of mass 40 kg and of length 20 m leans against a frictionless wall at a point 16 m above the ground. For safety purpose, the center of mass of the ladder is designed to be a quarter the way up. A 60 kg man is standing halfway up the ladder. (a) Calculate the reaction R from the ground and the angle θ it makes with the vertical. (b) If the man is to stand on the top of the ladder without slipping, find the minimum value for the coefficient of static friction between the ladder and the ground.
A 12.0-m boom, AB, of a crane lifting a 3000-kg load is shown below. The center of mass of the boom is at its geometric center, and the mass of the boom is 1000 kg. For the position shown, calculate tension T in the cable and the force at the axle A.
A delivery truck is carrying a 120 kg refrigerator. The refrigerator is 2.20 m tall and 85.0 cm wide. The refrigerator is facing sideways and is prevented from sliding. The center of gravity of the refrigerator is located at its geometrical center.
Determine the maximum acceleration that the truck can have before the refrigerator begins to tip over.
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