Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Vector Kinematics Question?
I have a hw assignment. I'm not sure if its correct or not?
An Astreroid is heading toward the Earth at a speed of 50 km/s. Astronauts attach a giant rocket to the asteroid giving it an acceleration of .0225 km/s/s perpendicular to its original direction. If the rocket is fired for 9 minutes, by what angle does the direction of the asteroid's velocity vector change?
a) 9min * 60 sex *.0225 = 12.15 km/sec. arctan (12.15/50) = 13.658 degrees. Is this correct?
b) What total distance does the asteroid travel during the 9 minutes the rocket is fired?
This one I didn't know what to do.
Thanks in advance!
2 Answers
- ?Lv 68 years agoFavorite Answer
a) is correct
b) call the initial direction the x direction and the perpendicular direction y
x=v*t=distance traveled in x direction
y=.5a*t^2=distance traveled in y direction
total distance traveled = (x^2 + y^2)^(1/2)
- 8 years ago
a) is correct (clap!)
b) To calculate DISTANCE it wolud require calculus and other V high level maths
but DISPLACEMENT is
squareroot((50*9*60)^2 +(12.15/2 *9*60)^2)
=27198.5602km
