Momentum, distance, and speed: supplies and rocket? - fire rescue supplies
They are part of a mission of search and rescue efforts were called in search of a lost explorer. You have found the missing explorer, but it is separated from a cliff at 200 meters and 30 meters wide raging river. To save his life, you must receive a package of 4.4 kilograms of relief supplies, in a river. Unfortunately you can not throw hard enough to do the package, everything. Fortunately, you will pass the 1.8 kilograms of rocket flares have on the establishment of destination. Improvise quickly and with a sharp stick in front of the rocket, this is the will to sign all the supplies and then to the rocket fire, the land in the supplies. What is the minimum speed, the missile just before impact with the aim of saving the lives of researchers?
I know that the rocket is 202,237 m (the hypotenuse of the triangle must travel). Thus d = 202.237. I'm lost, but where to go from there.
Ideas?
Thanks
Saturday, January 16, 2010
Fire Rescue Supplies Momentum, Distance, And Speed: Supplies And Rocket?
2 comments:
GHT-time T: T = 2Vy / g (time to the peak height hor climb and then descend to earth, and of course 2VX = T / g) and T = S / Vx (removal. / Hor Speed). Then 2VX ^ 2 = Mx * 9.80665m = 30m / s ^ 2 so that Vx = Vy = 12.128 m / s, and the magnitude of velocity = 17.152 m / s. This is the start and impact speed.
Of course, if the rocket has more energy to change this minimum value, the higher for higher launch and impact velocity compensation is. If you have less energy than the minimum croak Explorer.
However, if this version does not, maybe we are at the top of the cliff and must take place and over the river? I'll deal with this problem.
PS His approach to the problem is unclear. You say: "... then rocket fire on the ground to the offer." You mean my browser?
average speed and angle of the mountain is in EQUASION
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