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An object of mass 100g that can move only in the xy-plane is at rest at the origin of the xy-coordinate

system at time = 0.Constant forces  F0.80ˆjN and F= (0.60ˆ+ 0.40ˆj)N act on the object.

4. Young & Freedman (14th. ed), Problem 3.10, page 93. Please solve symbolically ﬁrst, before substituting in numerical values. Let h be the height of the cliﬀ above the ledge, and let w be the width of the ledge. Figure 1: Figure E3.10 from Young and Freedman. A daring 510 N swimmer dives oﬀ a cliﬀ with a running horizontal leap, as shown in Fig. E3.10. What must her minimum speed be just as she leaves the top of the cliﬀ so that she will miss the ledge at the bottom, which is 1 . 75 m wide and 9 . 00 m below the top of the cliﬀ? 5. Please complete “Assignment 2” through MasteringPhysics at masteringphysics.com . 2

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