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Sergeeva-Olga [200]
2 years ago
7

A ball with a mass of 1 kg is moving in a straight line at the same speed as a ball with a mass of 10 kg. Both balls are brought

to rest in 4.0 seconds. What is true of the force required to stop the balls?
A. It takes less force to stop the 1 kg ball because it has less inertia


B. It takes more force to stop the 1 kg ball because it has more inertia.

C. It takes the same force to stop both balls because they are moving at the same speed.

D. It takes less force to stop the 10 kg ball because it has less inertia.
Physics
2 answers:
Alenkasestr [34]2 years ago
7 0

Answer:

A it takes less force to stop the 1 kg ball because it has less inerita

Explanation:

Ronch [10]2 years ago
7 0
A. It takes less force to stop a 1 kilogram ball bc it has less inertia
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Anit [1.1K]

Answer:

Angular speed, \omega=6.90\times 10^{-13}\ rad/s

Explanation:

It is given that,    

The top of the leaning bell tower at Pisa, Italy, moved toward the south at an average rate of, v = 1.2 mm/yr

1\ mm/yr=3.171\times 10^{-11}\ m/s

Velocity, v=3.80\times 10^{-11}\ m/s

Height of the tower, h = 55 m

The height of the tower is equivalent to the radius. Let \omega is the angular speed of the tower’s top about its base. The relation between the angular speed and the angular speed is given by :

v=r\omega

\omega=\dfrac{v}{r}

\omega=\dfrac{3.80\times 10^{-11}\ m/s}{55\ m}

\omega=6.90\times 10^{-13}\ rad/s

So, the average angular speed of the tower’s top about its base is 6.90\times 10^{-13}\ rad/s. Hence, this is the required solution.

6 0
3 years ago
A 30kg boxed is pushed with a force of 20N. What is the boxes acceleration. Please show work
kozerog [31]

Answer:

<h3>The answer is 0.67 m/s²</h3>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

f is the force

m is the mass

From the question we have

a =  \frac{20}{30}  =  \frac{2}{3}  \\  = 0.6666666...

We have the final answer as

<h3>0.67 m/s²</h3>

Hope this helps you

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Gravity is the correct answer.

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garri49 [273]

Answer:

<u>We are given:</u>

u = 2.5 m/s

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From the first equation of motion:

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