- #1
disruptors
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- 1
Hey ppl, just a quick question..
You have a 10 g ping pong ball with a diameter of 3.5 cm...
a)The ball is shot straight up at twice its terminal speed. What is it’s
initial acceleration?
i know D=W at terminal speed but when u double it do you just assume D=4D and if you do how come?
The answer is a=-5g as summation of Fy=-D-w=-4w-w=-5mg=ma
the -4w is just throwing me off...
Thanks
You have a 10 g ping pong ball with a diameter of 3.5 cm...
a)The ball is shot straight up at twice its terminal speed. What is it’s
initial acceleration?
i know D=W at terminal speed but when u double it do you just assume D=4D and if you do how come?
The answer is a=-5g as summation of Fy=-D-w=-4w-w=-5mg=ma
the -4w is just throwing me off...
Thanks