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AURORKA [14]
3 years ago
12

A 1kg pool ball travels to the right at 2m/s and hits another stopped pool ball bounces back to the left at 1m/s what is the vel

ocity of the other pool ball
Physics
1 answer:
Burka [1]3 years ago
5 0
Ptotal=Ptotal —> m1v1+m2v2=m1v1’+m2v2’ —> (1kg)(2m/s)+(1kg)(0m/s)=(1kg)(-1m/s)+(1kg)(v2’) —> v2’=3m/s

answer: v=3m/s
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Six dogs pull a two-person sled with a total mass of 280 kg. The coefficient of kinetic friction between the sled and the snow i
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total mass M= 280 kg

<span>The coefficient of kinetic friction between the sled and the snow  = 0.080</span>

The sled acceleration a =0.65 m/s2

Initial speed u = 0

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= 15 (1000m/3600s) = 4.166 m/s

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8 0
3 years ago
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3 years ago
A car traveling at 50 m/s comes to a stop in 5 seconds. What is the<br> acceleration of this car?
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4 0
3 years ago
I need help answering this, I keep running into dead ends.
Vlad [161]

Answer:

Use of the "range" formula will greatly simplify this -

R = V^2 sin 2 θ / g  

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sin 2 θ = 10.8 * 9.8 / 225 = 28.1 deg            

θ = 14 deg

5 0
3 years ago
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