Consider a railroad bridge overa highway. A train passing over the bridgedislodg
ID: 1734579 • Letter: C
Question
Consider a railroad bridge overa highway.
A train passing over the bridgedislodges a
loose bolt from the bridge,which proceeds to
fall straight down and ends upbreaking the
windshield of a car passingunder the bridge.
The car was 26 m away from thepoint of
impact when the bolt began tofall down;
unfortunately, the driver didnot notice it and
proceeded at constant speed of28 m/s.
The acceleration of gravity is9.8m/s2 .
How high is the bridge? Or moreprecisely,
how high are the railroad tracksabove the
windshield height? Answer in units ofm.