__________ brake systems release the brakes momentarily when wheel speed sensors indicate a locked wheel during braking and trac
2 answers:
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The acceleration of the snowboarder is down along the incline
Explanation:
To find the acceleration of the snowboard, we have to analyze the forces acting along the direction parallel to the incline.
There is only one force acting in this direction, and it is the component of the weight parallel to the incline, given by
where
m = 75.0 kg is the mass of the man
is the acceleration of gravity
is the angle of the incline
Substituting, we find that the net force along the incline is:
According to Newton's second law, the net force on the snowboard is equal to the product between his mass and his acceleration:
where a is the acceleration. Therefore, solving for a, we find
And the direction of this acceleration is down along the incline.
Learn more about acceleration and Newton's second law:
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Answer:
1. 1.568 x 10^6 N m^2 / C
2. - 1.568 x 10^6 N m^2 / C
Explanation:
E = 4.9 x 10^4 N/C
Side of square, a = 8 m
Area, A = side x side = 8 x 8 = 64 m^2
Angle between lane of sheet and electric field = 30°
Angle between the normal of plane of sheet and electric field,
θ = 90°- 30° = 60°
The formula for the electric flux is given by
(1)
By substituting the values, we get
Ф = 4.9 x 10^4 x 64 x Cos 60 = 1.568 x 10^6 N m^2 / C
(2)
By substituting the values, we get
Ф = - 4.9 x 10^4 x 64 x Cos 60 = - 1.568 x 10^6 N m^2 / C