A satellite of mass m orbiting the earth close to the earth's surface has a speed v, such that VOR
A satellite of mass m orbiting the earth close to the earth's surface has a speed v, such that VOR
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Answer question 3, 4, 5 showing fully all the steps. Solution should be simplified and easy to understand as much as possible!
Transcribed Image Text:3. A satellite of mass m orbiting the earth close to the
earth's surface
has
a speed v, such that
VOR <v< /2gR. The magnitude of the gravitational
field strength near the earth's surface is g. Which of the
following statements is/are correcet?
1 The satellite will escape from the earth's gravitational
field.
2 The orbit of the satellite will be circular in shape,
with the earth as centre.
3 The path of the satellite will be elliptical in shape.
4. A particle of mass m is projected from a point at
height h, above a horizontal plane, with speed of 25
m s' at 30.0° below the horizontal. The particle
strikes the horizontal plane 82.0 m horizontally
away from the point of projection. Neglecting the
effect of air resistance,
1 The value of h depends on the mass of the
particle.
2 The acceleration of the particle is constant.
3 The time of flight of the particle is 3.79 s.
5. 5.0 kg of ice at 0°C just melts completely. Which
of the following statements is/are correct?
1 The entropy change of the ice depends on
whether the process is reversible or irreversible.
2 The entropy change of the ice is 6.2 x 10' J K.
3 The melting of ice this way is an isothermal
process.
Transcribed Image Text:Directions summarised
C
D
1 and 2 only 2 and 3 only
1 enly 3 only
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