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3 years ago

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if we increase the distance traveled over the same period of time, this will decrease the speed. increase the speed. decrease th

e velocity. not affect speed or velocity.

1 answer:

Darina [25.2K]3 years ago

5 0

Increase the speed. As speed is directly proportional to distance if time is constant

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A car speeds up from 3 m/s to 10 m/s in 8 s. How far does the car travel while doing this? 2. A

yarga [219]

Initial velocity=u=3m/s

Final velocity=v=10m/s

Time=t=8s

$\boxed{\sf Acceleration=\dfrac{v-u}{t}}$

$\\ \sf\longmapsto Acceleration=\dfrac{10-3}{8}$

$\\ \sf\longmapsto Acceleration=\dfrac{7}{8}$

$\\ \sf\longmapsto Acceleration=0.8m/s^2$

Distance =s

Using second equation of motion

$\\ \sf\longmapsto s=ut+\dfrac{1}{2}at^2$

$\\ \sf\longmapsto s=3(8)+\dfrac{1}{2}(0.8)(8)^2$

$\\ \sf\longmapsto s=24+0.4(64)$

$\\ \sf\longmapsto s=24+25.6$

$\\ \sf\longmapsto s=49.6m$

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3 years ago

A negative slope on the velocity vs. time graph indicates that the object is not

Svetlanka [38]

Answer: False, I think

Explanation:

Well it depends. Its hard to say without a function of the graph. Given a velocity graph, the first derivative is the acceleration.

Negative slope on a velocity graph means you are going in the negative direction. And over time, your velocity per unit of time is also decreasing. That means we are accelerating in the negative direction

4 0

3 years ago

Read 2 more answers

Can someone please help me with science.

vichka [17]

1 is b because a runs 20 and b rus 102 is c

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3 years ago

A 20.0 kg suitcase is raised 3.0 m above a platform. How much work is done on the suitcase?

Lisa [10]

Answer:

600

Explanation:

m=20

g=10m\s2

h=3m

we have

w=m*g*h

=20*10*3

=600joule

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4 years ago

What is the difference between unicellular and multicellular organisms?

bija089 [108]

Multicellular organisms<span> can be much larger and more complex. This is because the cells of the </span>organism<span> have specialised into many different types of cells such as nerve cells, blood cells, muscle cells all performing different functions.

</span><span>A unicellular organism, also known as a single-celled organism, is an organism that consists of only one cell, unlike a multicellular organism that consists of more than one cell.
</span>

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3 years ago