3 years ago

Please help with this I am very stuck because I am horrible at math

1 answer:

6 0

Answer:

Step-by-step explanation:

You might be interested in

denpristay [2]

Answer:

Her centripetal acceleration during the turn at each end of the track is $0.432\, \frac{m}{s^{2}}$

Step-by-step explanation:

Total distance covered in one round , D= 400 m

Time taken to cover one round , T = 1 min 40 s = 100 sec

Speed of runner , $V=\frac{D}{T}=\frac{400}{100}\, \frac{m}{s}= 4.0\, \frac{m}{s}$

Now centripetal acceleration is given by

$a_c=\frac{V^{2}}{R}$

where $V= 4.0\frac{m}{s}$

$Radius, R= \frac{Diameter}{2}=\frac{74}{2}m=37\, m$

$\therefore a_c=\frac{4^{2}}{37}\, \frac{m}{s^{2}}=0.432\, \frac{m}{s^{2}}$

Thus her centripetal acceleration during the turn at each end of the track is $0.432\, \frac{m}{s^{2}}$

4 0

4 years ago

Afina-wow [57]

...........................

4 0

4 years ago

8090 [49]

Answer:

yes

Step-by-step explanation:

I think you did the question correctly. good luck

7 0

3 years ago

viktelen [127]

Because the left side of the equation is an absolute value, making it impossible to = to -1.

7 0

4 years ago

gizmo_the_mogwai [7]

Es 20 hombres de nada: ).

4 0

3 years ago