- #1
ArchAngel1985
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The question I'm having trouble with is:
A child of mass 28.0 kg is sliding on ice with a velocity of 2.25 m/s in the positive x direction. She is holding a 2.4 kg ball in her hand. She throws the ball straight ahead of her with a velocity of 2.70 m/s (in the x direction). What is her velocity immediately after releasing the ball?
I think I need to get the rotational inertia for the ball to get its kinetic energy but I'm not given a radius.
A child of mass 28.0 kg is sliding on ice with a velocity of 2.25 m/s in the positive x direction. She is holding a 2.4 kg ball in her hand. She throws the ball straight ahead of her with a velocity of 2.70 m/s (in the x direction). What is her velocity immediately after releasing the ball?
I think I need to get the rotational inertia for the ball to get its kinetic energy but I'm not given a radius.