Homework 6 - homework 06 BAUTISTA, ALDO Due: Feb 3 2006,...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: homework 06 BAUTISTA, ALDO Due: Feb 3 2006, 4:00 am 1 Version number encoded for clicker entry: V1:1, V2:4, V3:2, V4:4, V5:3. Question 1 Part 1 of 3. 0 points. An athlete swings a 6 . 72 kg ball horizon- tally on the end of a rope. The ball moves in a circle of radius 0 . 899 m at an angular speed of 0 . 558 rev / s. What is the tangential speed of the ball? Correct answer: 3 . 15191 m / s (tolerance 1 %). Explanation: = 0 . 558 rev / s = 3 . 50602 rad / s . v t = r = (0 . 899 m)(3 . 50602 rad / s) = 3 . 15191 m / s . Question 2 Part 2 of 3. 0 points. What is its centripetal acceleration? Correct answer: 11 . 0507 m / s 2 (tolerance 1 %). Explanation: a r = r 2 = (0 . 899 m)(3 . 50602 rad / s) 2 = 11 . 0507 m / s 2 . Question 3 Part 3 of 3. 0 points. If the maximum tension the rope can with- stand before breaking is 156 N, what is the maximum tangential speed the ball can have? Correct answer: 4 . 56833 m / s (tolerance 1 %). Explanation: F = m v 2 r . If the maximum value of T is 156 N, then we have 156 N = (6 . 72 kg) v 2 . 899 m . From which, v max = 4 . 56833 m / s . Question 4 Part 1 of 3. 10 points. The figure below represents, at a given in- stant, the total acceleration of a particle mov- ing clockwise in a circle of radius 3 . 3 m. The magnitude of the total acceleration of the par- ticle at the given instant is 17 . 7 m / s 2 ; the an- gle between the vector of total acceleration and the radius-vector of the particle is 30 ....
View Full Document

Page1 / 4

Homework 6 - homework 06 BAUTISTA, ALDO Due: Feb 3 2006,...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online