Question

If a body is thrown upward with a velocity of 11.2km/s, what will happen?​

Answer 1

Explanation:

hope it is helpful to you!!

Answer 2

Explanation:

19.4km/s

Using energy conservation principle

P.E.

i +K.E =P.E. f +K.E f

where subscripts i and f for initial and final potential and kinetic energy of body

−

r

GGM + 21 m(2v e ) 2 =0+ 21 mv ′ 2

...(i}

v e

= 2GM

R⇒ RGM

= 2v e2

...(ii)

substituting relation in equation (i)

−m 21 v e

2 + 21 m(2v e ) 2 = 2mv 2

Solving for v = 3 v e

=19.4km/s.

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