ground. If they are initially d = 9.0 km apart, how long will it be before they reach each other?
_min?
2007-09-19 14:52:39 · 2 answers · asked by sportmatic23 1 in Science & Mathematics ➔ Physics
The relative speed of one locomotive versus the other is
150 km/hr
d=v*t
9 km=150 *t
t=9/150 hours
to convert to minutes, multiply by 60, For seconds 60^2
j
2007-09-20 05:49:03 · answer #1 · answered by odu83 7 · 0⤊ 0⤋
the ultimate v is a hundred and eighty km/h however the reason demands a reasonable 'recommendations bend' evaluate the 1st practice to be going west and get in touch with that helpful this velocity is v_t1_e or the vel of practice a million with appreciate to earth What we choose is the relative sum look at this v_t1_e + v_e_t2 = v_t1_t2 v_e_t2 is the rate of earth with appreciate to coach 2 that's the 'recommendations bender' yet look on the consequences of the addition the final subscript of the 1st v cancels the 1st subscript of the 2d v and the result's the vel of practice a million with appreciate to coach 2. that's the trick - getting the subscripts interior the marvelous order so practice a million whilst in comparison with earth is +ninety and earth whilst in comparison with practice 2 is +ninety (merely opposite of practice 2 whilst in comparison with earth) for this reason ninety + ninety = a hundred and eighty
2016-11-05 21:58:52 · answer #2 · answered by Anonymous · 0⤊ 0⤋