Math Focus
4. Calculate A penny is
dropped from the top of a tall
stairwell. What is the velocity of
the penny after it has fallen for
2 s? Show your work.

when earth is in rotational motion around the sun,it displaces from its place.

when a ball is placed on an inclined surface it does both the rotational and circular motion.

explanation:

15.3 cos 65 degrees trig

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2