7. When standing 2.0 m in front of an amusement park mirror, you notice that your image is three times taller. What is the radius of curvature of the mirror?

nswer:

v = 26. 88 m/s +23 m/s

Explanation:

u = 23 m/s, r = 150 cm, u₁ = 2.0 m/s, s =2.0 m

\frac{1}{s} +\frac{1}{s'} = \frac{2}{R}

s

1

+

s

′

1

=

R

2

\frac{1}{2.0 m} +\frac{1}{s'} = \frac{2}{1.50 m}

2.0m

1

+

s

′

1

=

1.50m

2

Solve s'

\frac{1}{s'} = \frac{2}{1.50 m} - \frac{1}{2.0 m}

s

′

1

=

1.50m

2

−

2.0m

1

\frac{1}{s'} = 1.833 m

s

′

1

= 1.833m

s' = - 0.545 ms

′

=−0.545m

To determine the speed of the trick to the highway

\frac{ds}{dt}= \frac{s^2* \frac{ds}{dt}}{s' ^2} =\frac{2.0 ^2m * 2.0 m/s}{0.545^2m}

\frac{ds}{dt} = 26.88 m/s

dt

ds

=26.88m/s

Now to determine the velocity highway is going to be

v = ds/dt + u

v = 26. 88 m/s +23 m/s

children tend to take more after their grandparents more than their parents. it’s the dna you received that was passed down to you somewhere in your family. maybe one of your grandparents had/has straight hair and you might have gotten it from them.

currents is the correct answer.