Question

Mass of a planet is 5 x 1024kg and radius is
6.1 x 106 m. The energy needed to send a 2kg
body from its surface in space is-​

Answer 1

Explanation:

Given,

m=2kg

M=5×10

24

kg

G=6.7×10

−11

Nm

2

/kg

2

r=6.1×10

6

m

The energy needed to send a 2kg body from the surface is equal to gravitational potential energy,

E=

r

GMm

E=

6.1×10

6

6.7×10

−11

×2×5×10

24

E=1.1×10

8

pls make it brainlest answer

J

Answer 2

Answer:

Given,

m=2kg

M=5×10  

24

kg

G=6.7×10  

−11

Nm  

2

/kg  

2

 

r=6.1×10  

6

m

The energy needed to send a 2kg body from the surface is equal to gravitational potential energy,

E=  

r

GMm

​  

 

E=  

6.1×10  

6

 

6.7×10  

−11

×2×5×10  

24

 

​  

E=1.1×10  

8

J

Explanation:

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