A train is traveling at the rate of 100 km/h. A conductor is walking toward the back of the train at 5 km/h. What is the conductor's speed relative to the ground? Please help!!!

Question

A train is traveling at the rate of 100 km/h.  A conductor is walking toward the back of the train at 5 km/h.  What is the conductor's speed relative to the ground?   Please help!!!

anonymous · Answer

95 km/hr i believe

anonymous · Answer

The conductor is moving in the opposite direction the train is moving in.  The train is moving 100km/h relative to the ground and the conductor is moving 5km/h relative the the ground, but in the OPPOSITE direction.  You must subtract the two velocity vectors to get 95km/h.  NOTE:  If the conductor were running 100km/h towards the back of the train his speed would be zero relative to the ground.

anonymous · Answer

THANK YOU!!  I thought it was 95, but wasn't sure.