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EOC_Solution_02_78

EOC_Solution_02_78 - 2.78 Model Jill and the grocery cart...

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2.78. Model: Jill and the grocery cart will be treated as particles that move according to the constant- acceleration kinematic equations. Visualize: Solve: The final position of Jill when the cart is caught is given by xxv tt a a t t J1 J0 J0 J1 J0 J0 J1 J0 J0 J1 2 J1 0 m 0 m s 2.0 m/s =+ −+ = + + = ()() ( ) ( ) 1 2 1 2 0 1 2 22 2 The cart’s position when it is caught is a t t C1 C0 C0 C1 C0 C0 C1 C0 2 C1 2 C1 2 50 m 0 m 0.5 m/s s 50 m 0.25 m/s )
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