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svetlana [45]
3 years ago
5

If an object accelerates from rest, with a constant acceleration of 5.4 m/s2, what will its velocity be after 28s?

Physics
1 answer:
aleksklad [387]3 years ago
6 0
Vf = Vi + at
Vf = 0 + 5.4•28
= 151.2m/s..
not sure if its right
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crimeas [40]

Answer:

Do find the answer in the attachment herein.

Explanation:

From the attached diagram:

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Can a body have increasing velocity with decreasing acceleration?
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I think you meant to ask whether the body can have increasing velocity
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If the body's velocity is in the positive direction, then positive acceleration
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BUT ... If the body's velocity is in the negative direction, then positive
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I know that's confusing. 

-- Take a piece of scratch paper, write a 'plus' sign at one edge and
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-- Now, one car at a time:
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3 0
3 years ago
Select the correct answer.
Murrr4er [49]

Answer:

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3 0
3 years ago
Can a average velocity be zero.Why? ​
marishachu [46]

<u>Answer:</u>

Yes

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Average velocity is the ratio of total displacement and time taken for that displacement:

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This means if displacement is zero, then average velocity will also be zero.

Displacement is zero when an object moves some distance in one direction, and then moves the same distance but in the opposite direction.

∴ As it is possible for displacement to be zero, it is also possible for average velocity to be zero.

4 0
2 years ago
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