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loris [4]
3 years ago
7

The car has a mass of 22,000Kg. Calculate the force needed to stop the car.

Physics
1 answer:
d1i1m1o1n [39]3 years ago
6 0

Answer:

Momentum of car = 1200 kg * 10 m/s = 12000 kgm/s Momentum = Force * time 12000 kgm/s = Force * 20s Force = 600 N

Explanation:

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A tabletop gamer has designed a game that requires three dice to be thrown onto a tray with a measurement grid. To add an extra
Airida [17]

Answer:

The resulting coordinate is   (x,y) =  (-0.170 \ m  ,  -0.038 \ m )

Explanation:

From the question we are told that  

     The  mass of the first dice is  m_1 =  11.10 \ g

      The  mass of the second dice is  m_2  =  15.10 \ g

     The mass of the third dice is  m_3 =  18.90 \ g

     The coordinate of the first dice is (x_1, y_1) =  (0.3150\ m  ,  -0.4990 \ m  )

     The coordinate of the second dice is  (x_2,y_2) =  (-0.4050  \ m  , 0.4850 \ m  )

      The coordinate of the third dice is  (x_3 , y_3) =  (-0.1150 \ m ,  -0.1850\ m )

Generally the resulting coordinate of the center of mass of the dice in the x-axis is mathematically evaluated as

        x\ cm  =  \frac{m_1 * x_1 + m_2 * x_2 + m_3 * x_3}{m_1 + m_2 +m_3 }

i.e the summation of the moments about their x-axis divided by the magnitude of their masses

    substituting values

         x\ cm  =  \frac{11.0  * 0.3150 + 15.10 * (-0.4050) + 18.90 * (-0.1150)}{11.100 + 15.10 +18.90 }

        x\ cm  = -0.170 \ m

Generally the resulting coordinate of the center of mass of the dice in the y-axis is mathematically evaluated as

     y\ cm  =  \frac{m_1 * y_1 + m_2 * y_2 + m_3 * y_3}{m_1 + m_2 +m_3 }

     y\ cm  =  \frac{ 11.10 * (-0.4990) + (15.10) * (0.4850) + (18.90) * (-0.1850)}{ 11.10 + 15.10 +18.90 }

     y\ cm  =  -0.038 \ m

Thus the resulting coordinate is   (x,y) =  (-0.170 \ m  ,  -0.038 \ m )

4 0
3 years ago
Which sentence is a correct statement of Newton's second law?
erma4kov [3.2K]

Answer:

B. A object in motion stays in motion, and an object at rest stays at rest unless acted upon by a net force.

4 0
3 years ago
Acar goes from 20m/s to 30m/s in 10 seconds what is its acceleration
prohojiy [21]

Acceleration = change in velocity/change in time

                     = (30 - 20) / 10 - 0

                      = 10 / 10

Acceleration = 1 m/s²

8 0
3 years ago
How long does it take a car to go 1000 m if it is going at 50 m/sec?
Lina20 [59]

The car would take 20 seconds to go 1000 meters. This can be found by dividing 1000 by 50.

If you need more help, comment below and I will be happy to assist.

3 0
3 years ago
Question 10 of 34
labwork [276]

Julia walks from the park, which is six blocks east of her house, to the store, which is three blocks east of her house. Julia walks for 5 minutes. This walk's average speed will be 1.2 blocks per minute. Option B is correct.

<h3>What is displacement?</h3>

Displacement is defined as the shortest distance between the two points. Distance is the horizontal length covered by the body. While displacement is the shortest distance between the two points.

Displacement is a vector quantity .its unit is m.

The average velocity on this walk will be;

\rm v_{avg}= \frac{d}{t} \\\\ \rm v_{avg}= \frac{6 \ block+ 3 \ block }{5 \ minute } \\\\ v_{avg}=1.4  \ block /min

Hence option B is correct.

To learn more about displacement refer to the link; brainly.com/question/10919017

#SPJ1

3 0
2 years ago
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