Which two simple machines are part of an axe?
a. lever and wedge
b. blade and handle
c. inclined plane and screw
d. wedge and inclined plane

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

Abucket full of water weights 4 kg and water well is 10m deep. a girl draws water from the well. it takes the girl 3 minutes to draw a bucket full of water from the well. what is the power of the girl?

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?