This preview shows pages 1–3. Sign up to view the full content.
PHY 302K Unique
#
56485
Midterm Exam
ff
1
Version 836
Na'me:
?rb
ctork
UT EID:
Guidelines
1. Do not open this exam until instructed to do so.
2. You will have 50 minutes to completrt!
the exarn. There are 10 problems, so if any problem
takes you more than 5 minutes, you should probably move on to another one.
3. Write all your answers on the provided bubble sheet. Be sure to write and bubble in your
name, UT EID, and the threedigit version number.
4. At the end of the exam, turn in the bubble sheet, all your scratch paper, and the formula
sheet you brought, along with this exam booklet.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document1
Projectile motion
A football is flying under the influence of earth's gravity. The u direction is parallel to the ground,
and the
'y
direction is perpendicular to the ground. Which statement is correct?
a) The speed of the football is constant.
b) The speed along y is always greater than the speed along r.
c) The speed along r is constant.
d) The speed along r is proportional to the speed along g.
e) The football only accelerates
at its maximal vertical position since
the direction of its velocity
changes
there.
Sgro;
r)
ffi;f
:',i'tc€
+L*e
ts Ao ac(u'Q"v*'*'*n
2
'Vector
addition
Suppose there are two vectors C and, D. Each has a magnitude of 1. The direction of e is 30",
This is the end of the preview. Sign up
to
access the rest of the document.
 Spring '11
 Zao

Click to edit the document details