Neglecting air resistance, if you throw a baseball at 20 m/s to your friend who is on the first base, will the catching speed be greater than, euals to or less than 20m/s? Does the speed change if air resistance is factor?
2007-09-26 07:42:54 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Ignoring air resistance:
If you're laying on the ground after making a diving stop of a hard one-hopper, and your friend catches it head high, the catching speed will be less than 20 m/s. Since you threw it uphill, it will lose some of the vertical component of velocity on the way to 1st base.
If you're taller than your friend and he/she has to catch it ankle high, it will gain vertical velocity on the way to 1st, so total velocity will be higher.
If your friend catches it at the same altitude that you release it, then the velocity will be the same.
2007-09-26 08:42:05 · answer #1 · answered by sojsail 7 · 0⤊ 0⤋
In a dead air space, the decrease would be negligible but yes the speed would decrease. Air Resistance however, is but one very small aspect of velocity. By the way, Air resistance is friction
2007-09-26 15:06:10 · answer #2 · answered by oldman 7 · 0⤊ 0⤋