PHYSICS: So you ready for that test tomorrow? Since I forgot to turn on the mic at the help session this morning (!), I thought I’d post an old review from the Projectile Motion worksheet problems (I think it’s #3, 5, and 7). Don’t forget what you should do to start – Draw a picture, write what you know, resolve the resultant velocity into vertical and horizontal if you need to, and find formulas that fit (because it will hardly ever be solved with just one) and go for it!!
If you are talking angular projectiles, the resultant velocity is actually made up of two things – horizontal velocity and vertical velocity. The horizontal velocity never changes, the vertical velocity has a different direction going up and coming down, but it has the same speed at equal levels. If you’re talking horizontal projectiles, the resultant velocity is the same as the horizontal velocity of the gun – or whatever, because that’s the only kind of initial velocity it has! Relative motion is even easier – just use the Pythagorean theorem and tangent, and use horizontal to find horizontal and vertical to find vertical. Good luck! I’ll be praying for you!!
Question about web posts in general. if we post on a Sunday, does it count as the web post for that week?
do we need to come to the website on Monday afternoon to get the information in the rocket lab?
So lab books are due Wednesday now, right?
Will – Yes!
For Ben
Time 1- 4.44 s
Time 2- 4.72 s
Time 3- 4.63 s
Time 4- 4.60 s
Time 5- 4.63 s
Angle- 48 degrees
Resultant velocity- 22.66 m/s
Time total- 4.62 s
Velocity horizontal- 14.51 m/s
projected distance- 33.5 m
gracias
Are we doing ACT prep tomorrow?
Q: How were three graduate physics students able to demonstrated that a human could travel faster than light?
A: The three students went to a store and bought a stop watch and a candle. Then, they proceeded to a high school track field. The first student lit the candle and began to walk around the track. The second student waited a while and then ran after the first student. The third student worked the stop watch because physics experiments require precise measurements. When the second student rounded the track and came in first, the three students concluded that humans could travel faster than light. Haha 😀
Will the test we just took be on this nine weeks?
Ms. Skinner, i hope you have a great fall break!