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Problem 9: Suppose that a 115 kg football player running at 5.5 m/s catches a 0.47...

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Physics

Problem 9: Suppose that a 115 kg football player running at 5.5m/s catches a 0.47 kg ball moving at a speed of 25.5 m/s with hisfeet off the ground, while both of them are movinghorizontally.

Part (a) Calculate the final speed of the player, in meters persecond, if the ball and player are initially moving in the samedirection. Numeric : A numeric value is expected and not anexpression. vf,1 = __________________________________________

Part (b) Calculate the change in kinetic energy of the system,in joules, after the player catches the ball. Numeric : A numericvalue is expected and not an expression. ΔKE1 =__________________________________________

Part (c) Calculate the final speed of the player, in meters persecond, if the ball and player are initially moving in oppositedirections. Numeric : A numeric value is expected and not anexpression. vf,2 = __________________________________________

Part (d) Calculate the change in kinetic energy of the system,in joules, in this case. Numeric : A numeric value is expected andnot an expression. ΔKE2 =__________________________________________

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