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nadya68 [22]
3 years ago
15

It turns out that Mercury and Mars have the same gravity as one another – that is, you would weigh the same on the surface of Me

rcury as you would on the surface of Mars, despite the fact that Mercury is smaller. Why is this the case?
Physics
1 answer:
Tamiku [17]3 years ago
4 0

Answer:

Explanation:

The value of acceleration due to gravity of mars is same as that the value of acceleration due to gravity of Mercury.

The value of acceleration due to gravity of a planet depends on its mass and the radius.

The formula for the acceleration due to gravity is given by

g=\frac{GM}{R^{2}}

Where, M be the mass of the planet, R be the radius of the planet.

As according to the question, the value of acceleration due to gravity for Mercury is same as that of Mars.

\frac{GM_{mercury}}{R_{mercury}^{2}}=\frac{GM_{mars}}{R_{mars}^{2}}

\frac{M_{mercury}}{R_{mercury}^{2}}=\frac{M_{mars}}{R_{mars}^{2}}

As teh radius of Mercury is small, and acceleration due to gravity is same, it is possible because the mass of Mercury is more than the mass of Mars.

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A speeder passes a parked police car at a constant speed of 23.3 m/s. At that instant, the police car starts from rest with a un
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Answer:

t = 16.94 s

Explanation:

t is the time passes before police catch the speeder

speed of speeder Vo = V = 23.3 m/s

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Police Info

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t = t

Now,

displacement of the police car = displacement of the speeder.

x_{police} = Vo *t + 1/2 at^2

since Vo = 0

x police = 1/2 at^2

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Now the displacement of speeder is

x_{speeder} = Vt

x_{speeder} = 23.3 t

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23.3 t = 1.375 t^2

t = 23.3\1.375

t = 16.94

t = 16.94 s

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