document.write( "Question 921300: Two vehicles, separated by a distance of 450 m , travel in opposite directions toward a traffic light. When will the vehicles pass one another if Vehicle A is travelling 35 km/h and is 300 m (E) of the traffic light while vehicle B is travelling 40 km/h. When will each vehicle pass the traffic light, assuming the light remains green the entire time? \n" ); document.write( "
Algebra.Com's Answer #559034 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Two vehicles, separated by a distance of 450 m , travel in opposite directions toward a traffic light. \n" ); document.write( " When will the vehicles pass one another if Vehicle A is travelling 35 km/h and is 300 m (E) of the traffic light while vehicle B is travelling 40 km/h. \n" ); document.write( ": \n" ); document.write( "since we are dealing in km/hr, change 450 m to .45 km; and 300 m to .3 km \n" ); document.write( ": \n" ); document.write( "When the two vehicles meet they will have traveled a total of 450m \n" ); document.write( "let t = travel time of both vehicles when they meet \n" ); document.write( "35t + 40t = .45 \n" ); document.write( "75t = .45 \n" ); document.write( "t = .45/75 \n" ); document.write( "t = .006 hrs, .006(3600) = 21.6 seconds \n" ); document.write( ": \n" ); document.write( " When will each vehicle pass the traffic light, assuming the light remains green the entire time? \n" ); document.write( "time = dist/speed \n" ); document.write( "Find when vehicle A reaches traffic light (change hrs to sec) \n" ); document.write( ".3/35 = .00857 * 3600 = 30.86 sec \n" ); document.write( "Find when vehicle B reaches the traffic light \n" ); document.write( "(.45-.3)/40 = .00375 * 3600 = 13.5 sec \n" ); document.write( " \n" ); document.write( " |