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Vesna [10]
3 years ago
14

Hi:) what does the one highlighted in pink mean?

Physics
1 answer:
Law Incorporation [45]3 years ago
5 0

Answer:

The acceleration of the car at the instant when t=3s is found by taking the gradient of the tangent at the point t=3.

The tangent are those dotted lines sloping upwards in the graph.

Tangent: A straight line that touches the curve and does not intersect it.

The reason why they wrote instantaneous is because the acceleration (or gradient of graph) is not constant throughout hence it is just at the moment when t=3s.

Gradient is used to find the acceleration of a speed time graph.

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A deviant person would behave in a culturally unacceptable
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True

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3 years ago
Does the depth of a pot affect how water freezes
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3 years ago
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The mass of the particles that a river can transport is proportional to the sixth power of the speed of the river. A certain riv
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Answer:

1.122 m/s

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This means the river must be flowing at a speed of

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3 years ago
If it takes 50.0 seconds to lift 10.0 Newtons of books to a height of 7.0
Ilya [14]
Work of the force = 10 N

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We are given with the value of work and time in the question.

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w = Work

p = Power

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By the formula,

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Substituting their values,

p = 70/50

p = 1.4 watts

Therefore, the power required is 1.4 watts.

Hope it helps!
3 0
3 years ago
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