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physics kinematics question. HELP!?
i've been attempting to solve this qn for the past hour. can someone help me? thank you!
(it's qn 3 on my worksheet http://i633.photobucket.com/albums/uu60/greyedbox/...
An antitank gun is located on the edge of a plateau that is 60 m above the surrounding plain. The gun crew sights an enemy tank stationary on the plain at a horizontal distance of 2.2 km from the gun. At the same moment, the tank crew sees the gun and starts to move directly away from it with an acceleration of 0.90 m/s2.
If the antitank gun fires a shell with a muzzle speed of 240 m/s at an elevation of 10deg. above the horizontal, how long should the gun crew wait before firing if they are to hit the tank?
Y2H i have been trying to solve this question for the past hour. if i knew how to solve it then i wouldnt be posting the question here! if you cant help me then just dont answer my question!
2 Answers
- schurLv 45 years ago
nicely all you ought to do is to comprehend that on the time they have travelled the comparable distance (whilst they are passing) then the equations on your notes notice to the two automobiles and distance travelled for each motor vehicle would be equivalent. If i circulate any extra you will attempt(for the umteenth time)to undergo in recommendations the thank you to do it and you will no longer be effectual.So artwork it out here and now or settle for defeat. stable success!
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