So acceleration = (final velocity - initial velocity)/time

So (fv-iv)/t=a

(45-110)/4.5

Gives you (-130/9)km/h^2

You may have to convert the SI units so just follow my steps and change what must be changed

4 0

3 years ago

Read 2 more answers

Jane does 5 joules of work when she closes her bedroom window. She applies a force of 6 newtons to do the job. How far does she

insens350 [35]

Statement:

Jane does 5 joules of work when she closes her bedroom window. She applies a force of 6 newtons to do the job.

To find out:

The displacement of the window when she pulled it.

Solution:

Work done (W) = 5 J
Force (F) = 6 N
Let the displacement of the window be s.
We know, the formula of work done, i.e., W = Fs
Putting the values in the above formula, we get
5 J = 6 N × s
or, s = (5 ÷ 6) m
or, s = 0.83 m

Answer:

She pulls the window by 0.83 m.

Hope you could understand.

If you have any query, feel free to ask.

4 0

3 years ago

How many significant figures are in 0.0069

posledela

Two significant figures, the 6 and the 9

7 0

3 years ago