yes 60 Seconds/minute * 15 minutes = 900 seconds. This is 10 seconds greater than 850 seconds.
That depends on how fast you are walking. I could give you the formulae for working this out if it helps.Time taken = distance / speedSpeed = distance / timeDistance = speed x timeExample... If I were walking at 0.8 metres per second, I would travel 850 metres in...Time = distance / speed= 850 / 0.8= 1062.5 seconds.
850/50 = 17 hours
Too long!
I'll let you figure it out. Multiply 850 by 60. Multiply that by 60. Sorry but you should already know how to do that. This should have said divide by, not multiply by! There are 3600 seconds in an hour. A speed of 850 miles per hour is 850/3600 miles per seconds = 0.23611 miles per second, which is just slightly less than one quarter mile per second.
850 ft long
To totally cross the bridge the train must travel (850m + 150m) 1 km. 1 km in 100 seconds is 10 m/s roughly 20 mph, so the answer is yes, with ease.
850
0.0824
850
5443200 seconds = 5443200 seconds
about.... 90 seconds