If you were to stand in the exact center of a rotating disc, you would only have what kind of

What is the fastest the block can be spun at without breaking with the block weighing 10kg and spinning horizontally with a 2m s

larisa86 [58]

The fastest speed before the string breaks is 9.5 m/s

Explanation:

The motion of the block is a uniform circular motion, which is a circular motion with constant speed. The force that keeps the block in circular motion is called centripetal force; its direction is towards the centre of the circle and its magnitude is given by:

$F=m\frac{v^2}{r}$

where

m is the mass of the block

v is its speed

r is the radius of the circle

In this problem, the centripetal force is provided by the tension in the string, T, so we can write:

$T=m\frac{v^2}{r}$

The string breaks when the centripetal force becomes larger than the maximum tension in the string:

$T_{max}$

Re-arranging the equation for v,

$v>\sqrt{\frac{Tr}{m}}$

and here we have:

T = 450 N

m = 10 kg

r = 2 m

Substituting,

$v>\sqrt{\frac{(450)(2)}{10}}=9.5 m/s$

So, the fastest speed before the string breaks is 9.5 m/s.

Learn more about circular motion:

brainly.com/question/2562955

brainly.com/question/6372960

#LearnwithBrainly

7 0

3 years ago

A 5.0-newton force could have perpendicular components of

tino4ka555 [31]

Answer:

It can have many set of perpendicular component but the most important one is 3 AND 4

Explanation:

PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE 

7 0

2 years ago

WILL MARK BRAINLEST What factual or logical statements would look like in ethics?

gulaghasi [49]

The intersection of logic and ethics concerns questions about the nature of moral reasoning. ... If one can successfully carry out such deductions, then moral reasoning is guided properly by consideration of nonmoral facts from which moral conclusions can be derived.

6 0

2 years ago

A graduated cylinder contains 62 ml of water. When a small metal block is added to the water, the volume of the water increases

lawyer [7]

Answer:

The density of the block is 7.4g/ml.

Explanation:

We can determine the volume of the metal block by taking the difference between the volumes measured in the graduated cylinder:

$V_{block}=65.5ml-62ml\\\\V_{block}=3.5ml$

Now, as we know that the average density of an object is calculated dividing its mass by its volume, we can calculate the density ρ of the metal block using the expression:

$\rho_{block}=\frac{m_{block}}{V_{block}}\\\\\rho_{block}=\frac{26g}{3.5ml}\\\\\rho_{block}=7.4\frac{g}{ml}$