2013 ppt batfink projectile review
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Transcript of 2013 ppt batfink projectile review
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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.
y
Fs 735 N
Ff 2.25 N Fa 85 N x
Fg 735 N
Calculate the acceleration
of the barrel in the xaxis.
SOLUTION:Acceleration of Batfink and the barrel.
mbf = 50 kg amb = 25 kgg = -9.8 m/s2
Fa = 85 NFf = 7 NXi = 0 mXf = 12 m a = 1.04 m/s2
What is the Vf of the
barrel just before it falls
off the cliff?
SOLUTION:Final velocity of Batfink and the barrel while still on the cliff.
mbf = 50 kg amb = 25 kga = 1.04 m/s2
g = -9.8 m/s2
Fa = 85 NFf = 7 NXi = 0 mXf = 12 m Vx = 5 m/s
Batfink is pushed off of the 52 meter
high Canadian Horseshoe Fallstowards the dried up Maid of theMist pool. How much time willBatfink have to escape from thebarrel once it leaves the cliff?
SOLUTION:Maximum time for escape.
Vi = 0 m/s tf
g = -9.8 m/s2 Vf
Yf = 0 mYi = 52 mti = 0 s t = 3.26 s
SOLUTION:Final velocity of Batfink and the barrel.
Vi = 0 m/s Vf
g = -9.8 m/s2
Yi = 52 mYf = 0 mti = 0 s tf = 3.19 s Vf = -31.95 m/s
SOLUTION:Final velocity of Batfink and the barrel.
Vyi = 0 m/s Xf
g = -9.8 m/s2
Yi = 52 mYf = 0 mti = 0 s tf = 3.19 s Xf = 16.3 mVyf = -31.3 m/s