Monday

December 22, 2014

December 22, 2014

Posted by **Marisol** on Sunday, October 14, 2007 at 10:44am.

1. What height is expected that the ball bearing reach.

I used the formula: vf=vo+2ax (velocity as a function of displacement)

so... 1.22^2=0+2(9.8)x, x = .0759m

2. For a given velocity, does the height depend on the mass of the ball?

According to the last problem, (if I did it right), the height does not depend on the mass.

Am I correct? Your help would be greatly appreciated.

- Physics -
**bobpursley**, Sunday, October 14, 2007 at 3:59pmyou are correct on both, however, on the first you worked it with a sign problem. Gravity is down, so it should have been negative, and you put in Vf, not Vo.

Should have been

Vf^2=Vo^2 + 2ad

0=1.22^2 + 2(-9.8)x

**Answer this Question**

**Related Questions**

physics - Standing on top of the science building, which is 48 m high, a group ...

Physics - A cannon ball whose barrel is angled at 40˚ from the horizontal ...

physics - If a student took a running start before starting to travel up stairs...

Physics - Hello, I don't understand how to do part "d" of the question. Can ...

physics - A football is thrown horizontally with an initial velocity of (16.5 m/...

physics - The velocity of a ball changes from ‹ 8, −5, 0 › m/s to ‹ 7.88...

Physics - 2-D kinematics - A soccer ball is kicked with an initial horizontal ...

physics - A 3.35 kg ball moving at 4.20 m/s to the right hits a 2.45 kg ball ...

Physics - From the top of a cliff with 80 m height a stone is thrown vertically...

physics please help - A student standing on the ground throws a ball straight up...