HW12 - homework 12 – RAHMAN, TARIQUE – Due: Mar 4 2008,...

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 12 – RAHMAN, TARIQUE – Due: Mar 4 2008, 9:00 pm 1 Question 1, chap 9, sect 1. part 1 of 2 10 points A ball is tossed straight up from the surface of a small, spherical asteroid with no atmo- sphere. The ball rises to a height equal to the asteroid’s radius and then falls straight down toward the surface of the asteroid. What forces, if any, act on the ball while it is on the way up? 1. Only a constant gravitational force that acts downward 2. Only an increasing gravitational force that acts downward 3. Both a constant gravitational force that acts downward and a decreasing force that acts upward 4. No forces act on the ball. 5. Only a decreasing gravitational force that acts downward Question 2, chap 9, sect 1. part 2 of 2 10 points The acceleration of the ball at the top of its path is 1. equal to one-half the acceleration at the surface of the asteroid. 2. zero. 3. equal to the acceleration at the surface of the asteroid. 4. at its maximum value for the ball’s flight. 5. equal to one-fourth the acceleration at the surface of the asteroid. Question 3, chap 9, sect 1. part 1 of 2 10 points Compare the gravitational force on a 30 kg mass at the surface of the Earth ( R E = 6 . 4 × 10 6 m, M E = 6 × 10 24 kg) with that on the surface of the Moon ( M M = 1 81 . 3 M E , R M = 0 . 27 R E )....
View Full Document

This note was uploaded on 02/03/2010 for the course PHY 303K taught by Professor Turner during the Fall '08 term at University of Texas at Austin.

Page1 / 4

HW12 - homework 12 – RAHMAN, TARIQUE – Due: Mar 4 2008,...

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