A penny falls from a windowsill 25.0 m above the sidewalk. How fast is the penny moving when it strikes the ground? (Remember that the velocity will be negative due to the downward motion of the penny)

2 answers

vf^2=Vi^2+2gd
a body traveling in a straight line and increasing in speed

a body traveling in a straight line and decreasing in speed

a body traveling in a straight line at constant speed

a body standing still

a body traveling at a constant speed and changing direction