A hiker travels south along a straight line path for 1.5 hours with an average velocity of 0.75 km/hr, then travels south for 2.5 hours with an average velocity of 0.90 km/hr. what is the hiker's displacement for the total trip?
Distance travelled in south direction= 1.5hr*0.75km/hr= 1.125km Distance travlled in north direction= 0.90*2.5=2.25 Net displacement = 2.25-1.125= 1.125 to the north
