A71.5 kg football player is gliding across very smooth ice at 2.00 m/s . he throws a 0.470 kg football straight forward. what is the player's speed afterward if the ball is thrown at 12.5 m/s relative to the ground? express your answer with the appropriate units

The player's speed is 1.93 m/s.

Explanation:

Given that,

Mass of football = 71.5 kg

Speed = 2.00 m/s

Mass of football = 0.470 Kg

Speed = 12.5 m/s

We need to calculate the initial momentum of the football player and ball

Put the value into the formula

We need to calculate the final momentum of the system

Put the value into the formula

We need to calculate the relative to the ground

Using conservation of momentum

Put the value into the formula

Hence, The player's speed is 1.93 m/s.

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