{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

# T1-S61 - Name Northwestern University Id Math 230 Section...

This preview shows pages 1–6. Sign up to view the full content.

Northwestern University Name: Id #: Math 230 Section 61 Test #1 Fall Quarter 2007 Tuesday, October 23, 2007 Name: Instructions: Show all your work on these sheets. Feel free to use the opposite side. Make sure that your final answer is clearly indicated. This test has seven problems. No calculators, books, notes, etc. are allowed. Good luck! Prob. Possible Score points 1 15 2 15 3 20 4 24 5 16 6 10 TOTAL 100

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Math 230 Section 61 Test #1 Fall Quarter 2007 Page 2 of 14 BLANK PAGE
Math 230 Section 61 Test #1 Fall Quarter 2007 Page 3 of 14 Question 1. (15 points) Find the point on the given curve below r ( t ) = (5 sin t ) i + (5 cos t ) j at a distance 25 π units along the curve from the origin in the direction of increasing arc length. Solution: r ( t ) = (5 cos t ) i + ( - 5 sin t ) j | r ( t ) | = p (5 cos t ) 2 + ( - 5 sin t ) 2 = 5 Z b 0 | r ( t ) | dt = Z b 0 5 dt = 5 t | b 0 = 5 b 5 b = 25 π, b = 5 π Point P = (0 , - 5)

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Math 230 Section 61 Test #1 Fall Quarter 2007 Page 4 of 14 BLANK PAGE
Math 230 Section 61 Test #1 Fall Quarter 2007 Page 5 of 14 Question 2. (15 points) Two helicopters, H 1 and H 2 , are traveling together. At time t = 0

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 14

T1-S61 - Name Northwestern University Id Math 230 Section...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online