- #1
negation
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Homework Statement
A car drives north at 40mi/h for 10mins then turns east and goes 5min at 60mi/hr. Finally it goes southwest at 30mi/h for 6min.
a) determine the displacement
b)average velocity for this trip
The Attempt at a Solution
x-component: 60mi/hr/60min x 5min = 5mi
y-component: 40mi/h/60min x 10mins = 6.7mi
south-west:
x-component:[(-30mi/hr cos 45°)/60mins]6min = -2.12mi
y-component: [(-30mi/hr sin 45°)/60mins]6min = -2.12mi
a) x-displacement: 5mi + (-2.12mi) = 2.88mi i
y-displacement: 6.7mi + (-2.12mi) = 4.58mi j
b)