3. Know
Definitions
of
Key Terms
& Symbols

4. Focus during the entire Power Point activity.
Solidify your studying skills during this
class period.
Perform your work in your science journal so
you have created a study guide for the test.
Call me over if you are having difficulty
getting started.
If your answer is confirmed as correct, become
a student/teacher and help someone in class
who does not understand the method used
to solve the problem.

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 8 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