Answer:
1.621 kN
Explanation:
Since each horse pulls with a force of 839 N at an angle of 15° with the centerline of the canal, the horizontal component of the force due to the first horse along the canal is F= 839cos15° N and its vertical component is F' = 839sin15° N(it is positive since it is perpendicular to the centerline of the canal and points upwards).
The horizontal component of the force due to the second horse along the canal is f = 839cos15° N and its vertical component is f' = -839sin15° N (it is negative since it is perpendicular to the centerline of the canal and points downwards).
So, the resultant horizontal component of force R = F + f = 839cos15° N + 839cos15° N = 2(839cos15°) N = 2(839 × 0.9659) = 2 × 810.412 = 1620.82 N
So, the resultant vertical component of force R' = F' + f' = 839sin15° N + (-839sin15° N) = 839sin15° N - 839sin15° N = 0 N
The magnitude of the resultant force which is the sum of the two forces is R" = √(R² + R'²)
= √(R² + 0²) (since R' = 0)
= √R²
= R
= 1620.82 N
= 1.62082 kN
≅ 1.621 kN
So, the sum of these two forces on the barge is 1.621 kN
The energy in wind CAME from radiant energy originally, but it isn't
radiant energy any more. It's the energy in the mass of moving air,
and that's KINETIC energy.
You could move the turbine blades with stones or pingpong balls,
push the blades with your hands, or shoot water at them from a hose.
In any case, you'd have moving mass with kinetic energy transfer that
energy to the turbine. A moving mass of air does the same thing.
Answer:
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Explanation:
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Answer:
a.6373.5 N
b.-3837.6 N
Explanation:
Mass of roller coaster=m=1040 kg
Radius=r=24 ,
a.
Normal force=
According to question
Where 
Substitute the values
b.
