Bob is a soccer player who has just scored the winning goal in the game. Bob,...

Bob is a soccer player who has just scored the winning goal in the game. Bob, who is also an observant physics student, noticed that when he received the pass, the soccer ball was moving 4.8 m/s 8° N of E and that after he kicked the ball it was moving at 25 m/s 41° E of S. What is the ball's change in velocity?

Solutions

Expert Solution

Initially the velocity of the soccer ball is 4.8m/s 8^o N of E. The initial velocity of the ball in component form is

After the kick, the soccer ball is moving at 25 m/s 41^o E of S. The final velocity of the ball in components form is

The change in velocity of the ball is

The magnitude of the change in velocity is

The angle that the change in velocity makes with the South in the direction of East is

The change in velocity of the ball is 22.7 m/s 30.7^o East of South.

genius_generous answered 2 years ago

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