A 71.0 kg football player is gliding across very smooth ice at 2.15 m/s . He throws a 0.470 kg football straight forward. Part A What is the player's speed afterward if the ball is thrown at 18.0 m/s relative to the ground?

The player's speed afterward ball is thrown at 18 relative to ground is 2.04

Explanation:

Given:

Mass of football player kg

Speed of player

Mass of football kg

For finding the player's speed afterward the ball is thrown at 18 relative to the ground,

The initial momentum of football player and ball is,

The final momentum of the system is,

Here given in question

Using the conservation of momentum,

Therefore, the player's speed afterward ball is thrown at 18 relative to ground is 2.04

neither accurate nor precise.

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