contestada

A satellite at a particular point along an elliptical orbit has a gravitational potential energy of 4700 MJ with respect to Earth's surface and a kinetic energy of 4800 MJ . Later in its orbit the satellite's potential energy is 6000 MJ .

Use conservation of energy to find its kinetic energy at that point.

Express your answer to two significant figures and include the appropriate units.

Respuesta :

during satellite motion we know that total energy is always conserved

so here we will have

[tex]KE_i + PE_i = KE_f + PE_f[/tex]

here we know that

[tex]KE_i = 4800 MJ[/tex]

[tex]PE_i = 4700 MJ[/tex]

now at other position

[tex]PE_f = 6000 MJ[/tex]

now from above equation we have

[tex]4800 +4700 = 6000 + KE[/tex]

now we have

[tex]9500 = 6000 + KE[/tex]

[tex]KE = 9500 - 6000 = 3500 MJ[/tex]

so its kinetic energy will be 3500 MJ

Otras preguntas