Andrea walked 1 block north and then 2 blocks west. How would you determine her total displacement?
A. Draw a vector from her starting point to her ending point.
O
B. Add 1 and 2
O C. Subtract 1 from 2.
O D. Draw a vector going 3 blocks northwest.

which statement about this sum is true? −245+2.7

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

momentum of soft ball three times less than baskey ball