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Ludmilka [50]
3 years ago
5

Have you ever devised a way to solve a problem? How?

Mathematics
1 answer:
lukranit [14]3 years ago
7 0

Answer:

What kind of problem?

Step-by-step explanation:

You might be interested in
A ball slides up a frictionless ramp. It is then rolled without slipping and with the same initial velocity up another frictionl
KATRIN_1 [288]

Answer:

Rolling case achieves greater height than sliding case

Step-by-step explanation:

For sliding ball:

- When balls slides up the ramp the kinetic energy is converted to gravitational potential energy.

- We have frictionless ramp, hence no loss due to friction.So the entire kinetic energy is converted into potential energy.

- The ball slides it only has translational kinetic energy as follows:

                                   ΔK.E = ΔP.E

                                   0.5*m*v^2 = m*g*h

                                    h = 0.5v^2 / g

For rolling ball:

- Its the same as the previous case but only difference is that there are two forms of kinetic energy translational and rotational. Thus the energy balance is:

                                  ΔK.E = ΔP.E

                                  0.5*m*v^2 + 0.5*I*w^2 = m*g*h

- Where I: moment of inertia of spherical ball = 2/5 *m*r^2

             w: Angular speed = v / r

                               0.5*m*v^2 + 0.2*m*v^2 = m*g*h

                               0.7v^2 = g*h

                               h = 0.7v^2 / g

- From both results we see that 0.7v^2/g for rolling case is greater than 0.5v^2/g sliding case.

4 0
2 years ago
the area of a rectangular garden is 156 square meters. The width is 7 meters longer than one half of it's length, find length an
Lapatulllka [165]
Width is 13 and the length is 12
3 0
3 years ago
Please see attachment!!! The formula for finding the area of a rectangle is
pychu [463]

Answer:

36cm^2

Step-by-step explanation:

4cm×9cm=36cm^2

5 0
2 years ago
Read 2 more answers
The function f is defined by the following rule.
Leno4ka [110]
X= -4; f(x)= -15
X= 2; f(x)= 3
X=5; f(x)= 12
6 0
2 years ago
If you pay $3.36 in tax, what was the original price at an 8% sales tax
yanalaym [24]

Answer:

  • $42

Step-by-step explanation:

<u>Given</u>

  • 8% = $3.36
  • 100% = x

<u>Cross multiply and solve for x:</u>

  • x = $3.36*100/8 = $42
4 0
2 years ago
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