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

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

Part (a) Calculate the final speed of the player, in meters per second, if the ball and player are initially moving in the same direction. Numeric : A numeric value is expected and not an expression. vf,1 = __________________________________________

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

Part (c) Calculate the final speed of the player, in meters per second, if the ball and player are initially moving in opposite directions. Numeric : A numeric value is expected and not an expression. vf,2 = __________________________________________

Part (d) Calculate the change in kinetic energy of the system, in joules, in this case. Numeric : A numeric value is expected and not an expression. ΔKE2 = __________________________________________

Solutions

Expert Solution

genius_generous answered 1 month ago

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