- divide the problem into 2 linear motion problems using PUKE
- one for the x and 1 for the y
- Time for the x&y are the same {the motions are occurring independently and simultaneously}
- Solve for time using PUKE"S" in either the x or y and apply it to the other direction.
- You are not learning anything new
http://go.hrw.com/resources/go_sc/phy/HF2PW03D.PDF
So for problem 2 I got No, because the horizontal displacement is 4.247 km. For problem 3 I got 170.16 meters. And for problem 4 I got .735 meters. I used the formula: (d=1/2at^2+vot+do) to do all the problems. I don't know if these are right so if anyone wants to verify these that would be great. I hope I'm not the only one that does this...
ReplyDelete-Larissa Pastore
For problem 2 I got yes, with a horizontal displacement of 13.07 km. For problem 3, I got 174.05 m (similar to Larissa's answer, might be a tad off because of rounding). For problem 6 I got an initial velocity of 45.8 m/s. I'm not sure if these answers are correct. I struggled with trying to draw the scenarios. For instance, in number 6, I was confused how to draw a triangle that fit the problem. It said the arrow was launched horizontally, but that it landed at sea level. How would one draw a triangle for this? -Erin Kiernan
ReplyDeletefor 2 i got no, with a horizontal displacement of 4.164km. For 3 i got 173.46m. and for 4 i got .795m.
ReplyDelete-Bhavani Singh