How do I do these?
Draw a free-body diagram for each of the following objects?
a. a projectile in motion in the presence of air resistance
b. a rocket leaving the launch pad with its engines operating
c. a heavy crate being pushed across a rough surface
a. mg is down, Ff is opposite the direction of the projectile.
b. mg is down, Fthrust is up
c. mg is down, F is forward, Ff is backward.
cathy is carrying out an experiment.jon is holding an copper rod and cathy is holding a glass rod
they sick them into a bunsen burner which one would heat first
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