�ݺ�ߣ

p02_008.pdf

•

0 likes•2 views

Two trains are approaching each other at a combined closing speed of 120 km/h. They will crash in 1 hour, during which time the bird traveling with one train at 60 km/h will have traveled a distance of 60 km.

8. Recognizing that the gap between the trains is closing at a constant rate of 60 km/h, the total time
which elapses before they crash is t = (60 km)/(60 km/h) = 1.0 h. During this time, the bird travels a
distance of x = vt = (60 km/h)(1.0 h) = 60 km.

More Related Content

p02_008.pdf

1. 8. Recognizing that the gap between the trains is closing at a constant rate of 60 km/h, the total time which elapses before they crash is t = (60 km)/(60 km/h) = 1.0 h. During this time, the bird travels a distance of x = vt = (60 km/h)(1.0 h) = 60 km.