Abaseball player is dashing toward home plate with a speed of 200 feet per hour. when he decides to hit the dirt. he slides for 1.3 seconds, just reaching the plate as he stops (he’s safe). a) what is the magnitude and direction of the player’s acceleration? b) how far did he slide?

To solve this problem we will use the kinematic formula for the final velocity.

The final speed is 0 at the moment the player stops.

The time until it stops is 1.3 s

The initial speed is 200 feet / s  Note (check the speed units in the problem statement, 200ft / s is very much and 200ft / h is very small)

Then, we clear the formula.

Because the player is slowing down, the acceleration goes in the opposite direction to the player's movement, and that is why it is negative.

To answer part b) we use the following formula.

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