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hammer [34]
3 years ago
9

A car has a applied force of 120 N and experiences a friction force of 20 N. The mass is 20 kg. The acceleration is

Physics
2 answers:
GrogVix [38]3 years ago
4 0
Acceleration = 100/20 = 5 m/s^2
Alexandra [31]3 years ago
3 0
The answer is 5 m/s2
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A 1423-kg car is moving along a level highway with a speed of 26.4 m/s. The driver takes the foot off the accelerator and the ca
Leona [35]

Answer:

Final speed, v = 28.81 m/s

Explanation:

Given that,

Mass of the car, m = 1423 kg

Initial speed of the car, u = 26.4 m/s

Force experience by the car, F = 901 N

Distance, d = 106 m

To find,

The speed of the car after traveling this distance.

Solution,

The force experienced by a car is equal to the product of mass and acceleration.

F=ma

a=\dfrac{F}{m}

a=\dfrac{901}{1423}

a=0.63\ m/s^2

Let v is the final speed of the car. Using third equation of motion to find it as :

v^2-u^2=2ad

v^2=2ad+u^2

v^2=2\times 0.63\times 106+(26.4)^2

v = 28.81 m/s

So, the final speed of the car is 28.81 m/s.

5 0
4 years ago
Stewart (70 Kg) is attracted to Ms. Little (60 Kg) who sits 2 m away. What is the gravitational attraction between them? G=6.67×
ikadub [295]

Happy Holidays!

We can use the following equation to solve for the gravitational force:

\large\boxed{F_g = G\frac{m_1m_2}{r^2}}

Fg = force due to gravity (N)

G = Gravitational constant

m1,m2 = masses of the objects (kg)

r = distance between the objects (m)

Plug in the given values into the equation:

F_g = (6.67*10^{-11})\frac{(70)(60)}{(2)^2}} = \boxed{7.0 * 10^{-8}N}

7 0
3 years ago
Select the correct answer. Which of the following is a category of dance? O A. Group dance OB. Solo dance O C. Partner dance OD.
jeka57 [31]

Answer:

all of above I think sorry if I'm not right but I tried

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How many water (in kg) can raise its temperature from 23°C to 100°C by adding 21500 Joules of energy?
igomit [66]

Answer: Approximately 8.0g of water

Explanation:

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3 years ago
You have discovered a planet that is one-quarter the radius of Earth (Rp = 1/4R⊕) and one-half as massive (Mp = 1/2M⊕). How does
ExtremeBDS [4]
It's 8 times as much as before.
4 0
3 years ago
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