J Dorsay

This page lists questions and answers that were posted by visitors named J Dorsay.

Questions

The following questions were asked by visitors named J Dorsay.

Answers

The following answers were posted by visitors named J Dorsay.

Add them. When the objects are travelling in opposite directions the velocity of one relative to the other is the sum of their speeds, again taking due care to state the correct direction. So, 142 km/h.