Posted by Lyna on .
A motorist drives north for 30.0 minutes at 62.0 km/h and then stops for 15.0 minutes. He then continues north, traveling 130 km in 1.90 h.
(a) What is his total displacement?
(b) What is his average velocity?

Physics 
Annamarie,
(a) (42min/hr) x (1hr/60min) = 0.7hr
(76.5km/hr) x 0.7 hr = 53.55 km (Part1)
Part2  130 km
Part1+part2=53.55km+130km=183.55km
Same problem different numbers 
Physics 
jalal,
A motorist drives north for 35.0 minutes at 85.0 km/h and then stops for 15.0 minutes. He then continues north, traveling 130 km in 2 h.
(a) What is his total displacement?
(b) What is his average velocity? 
Physics 
DON,
169.58km and 65.72km/hr