The document contains step-by-step solutions to physics problems involving forces, acceleration, velocity, and time calculations. It analyzes the motion of a barrel containing Batfink as it is pushed off a cliff and falls. The solutions include drawing free body diagrams, calculating acceleration along the x-axis, final velocity before falling, maximum time for escape from the barrel, and final velocity upon hitting the ground. Key values like masses, forces, distances, and times are identified and used to solve the problems.

3. Know
Definitions
of
Key Terms
& Symbols

4. Focus during the entire Power Point activity.
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Perform your work in your science journal so
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Call me over if you are having difficulty
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5. Hugo Ago-go pushes the barrel with
Batfink in it towards the end of the
cliff with a 85 N force over a distance
of 12 m before the barrel leaves the
cliff. The force of friction is 7 N.
Draw a force diagram of the
situation.

6. y
Fs 735 N
Ff 2.25 N
Fa 85 N
Fg 735 N
x

7. Calculate the acceleration
of the barrel in the x
axis.

8. SOLUTION:
Acceleration of Batfink and the barrel.
mbf = 50 kg
mb = 25 kg
g = -9.8 m/s2
Fa = 85 N
Ff = 7 N
Xi = 0 m
X = 12 m
a
a = 1.04 m/s2

9. What is the Vf of the
barrel just before it falls
off the cliff?

10. SOLUTION:
Final velocity of Batfink and the barrel while
still on the cliff.
mbf = 50 kg
mb = 25 kg
a = 1.04 m/s2
g = -9.8 m/s2
Fa = 85 N
Ff = 7 N
Xi = 0 m
a

11. Batfink is pushed off of the 52 meter
high Canadian Horseshoe Falls
towards the dried up Maid of the
Mist pool. How much time will
Batfink have to escape from the
barrel once it leaves the cliff?

12. SOLUTION:
Maximum time for escape.
Vi = 0 m/s
g = -9.8 m/s2
Yf = 0 m
Yi = 52 m
ti = 0 s
tf
Vf
t = 3.26 s

14. SOLUTION:
Final velocity of Batfink and the barrel.
Vi = 0 m/s
Vf
g = -9.8 m/s2
Yi = 52 m
Yf = 0 m
ti = 0 s
tf = 3.19 s
Vf = -31.95 m/s

16. SOLUTION:
Final velocity of Batfink and the barrel.
Vyi = 0 m/s
Xf
g = -9.8 m/s2
Yi = 52 m
Yf = 0 m
ti = 0 s
tf = 3.19 s
Xf = 16.3 m
V = -31.3 m/s