Asked by Jade
Dina walked North and East and has a resultant displacement of 125, 35^0 East of North. She has a velocity of 2.5 m/s. Compute her walking time and average speed.
Answers
Answered by
MathMate
Actual distance = sum of length of paths
Distance = sum of northings and eastings
= 125cos(35°)+125sin(35°)
= 102.4+71.70 m
= 174.09 m
Time = Displacement / velocity
= 125/2.5=50s
Speed = Distance / time
= 174.09/50
= 3.48 m/s
Distance = sum of northings and eastings
= 125cos(35°)+125sin(35°)
= 102.4+71.70 m
= 174.09 m
Time = Displacement / velocity
= 125/2.5=50s
Speed = Distance / time
= 174.09/50
= 3.48 m/s
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