Question
Mary walked north from her home to Sheila's home, which is 4.0 kilometers away. Then she turned right and walked another 3.0 kilometers to the supermarket, which is 5.0 kilometers from her own home. She walked the total distance in 1.5 hours. What were her average speed and average velocity?
Answers
1. Speed = d/t = (4+3) / 1.5=4.66 km/h.
2. tanA = 4/3 = 1.333,
A = 53.12 Deg.
D = X/cosA = 3/cos53.12 = 5 km @ 53.12 Deg.
V = 5 / 1.5 = 3.33 km/h @ 53 Deg.
2. tanA = 4/3 = 1.333,
A = 53.12 Deg.
D = X/cosA = 3/cos53.12 = 5 km @ 53.12 Deg.
V = 5 / 1.5 = 3.33 km/h @ 53 Deg.
Related Questions
Karina walked from home to the library did some homework then walked back home distance from home/ t...
Use the drop-down menus to choose the most descriptive and effective version of each sentence.
I...
Joey walked away from home for 21 3/4
meters. Then, he walked back in the direction of his home fo...
Based on the graph, which statement could describe Janelle’s trip home from school?
Janelle waite...