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2 years ago

Which graph represents the motion of an object traveling with a positive velocity and a negative acceleration?

Physics

2 answers:

Allushta [10]2 years ago

6 0

I believe the correct answer from the figure given above is the second option. The graph that represents the motion of an object traveling with a positive velocity and a negative acceleration would be graph 2 where a curve is shown where y increases as x increases. Hope this answers the question.

nignag [31]2 years ago

5 0

Answer
graph 2

Explanation
Velocity is the rate of change of displacement.
Velocity = (change in displacement)/(change is time)
In graph 2, the gradient of the curve is positive, indicating that the velocity is positive.
Acceleration is the rate of change of velocity.
The steepness of the slope of the same graph (graph 2) is decreasing. This shows that the velocity is decreasing hence a negative acceleration.

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Answer:

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Explanation:

An object is at rest along a slope if the net force acting on it is zero. The equation of the forces along the direction parallel to the slope is:

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where

$mg sin \theta$ is the component of the weight parallel to the slope, with m being the mass of the object, g the acceleration of gravity, $\theta$ the angle of the slope

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The equation of the forces along the direction perpendicular to the slope is

$R-mg cos \theta = 0$

where

R is the normal reaction

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Solving for R,

$R=mg cos \theta$

And substituting into (1)

$mg sin \theta - \mu_s mg cos \theta = 0$

Re-arranging the equation,

$sin \theta = \mu_s cos \theta\\\rightarrow tan \theta = \mu_s$

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tester [92]

Answer:

Explanation:

a False

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c True

d False

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Answer:

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Answer:

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Explanation:

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2 years ago