Saturday
March 25, 2017

Post a New Question

Posted by on .

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?

  • physics - ,

    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.

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question