Question

18. An elephant and a hunter are having a confrontation me = 2000.0 kg mhunter - 90.0 kg REarth = 1.50 mdart - 0.0400 kg Vdart - (600 m/s)(-1) VE = (7.50 m/s) Vhunter = (7.40 m/s)i a. Calculate the momentum of the 2000.0-kg elephant charging the hunter at a speed of 7.50 m/s. b. Calculate the ratio of the elephant's momentum to the momentum of a 0.0400-kg tranquilizer dart fired at a speed of 600 m/s. C. What is the momentum of the 90.0-kg hunter running at 7.40 m/s after missing the elephant? 22. If a rainstorm drops 1 cm kmin the period of 1 hour, w rain that falls in one second? A

Answer 1

Page No. Date Ans. mass of elephent me = 2000 kg speed of elephent Ve=(7.50 m/s) i So momentum of the elephent will be P=mre p=2000x17.50 m/s) 1. Tomisi P= 15000 kg. mis it (6) mass of dart Mdast = 0.0400kg speed of dost = (600m/s) (-i) - Yast ==600 mis so momentum of dost dast = mdagt ne dort Last = 0.0400 x 600m/s) () Plast = 24 kg ms (-i) So Ratio of Pelephent = 15000 - Petact 24 Pelephent - 625 Ans dast

Page No. Date c) momentum of Hunter my gokg, V = 7.40 m/s So, P4 = MAVH Pu= 7.40 X 90 | 74= 66 kg. mile)
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