Question

Escape velocity of a 1kg body on a planet is 100
m/s. Potential energy of body at that planet is:
(1) - 5000J
(2) -1000J
(4) -10000J​

Answer 1

$\sqrt{2gh } = v \\ v =1 00 \\ mass = 1kg \: \\ so \: kinetic \: eng = \div 2 \times mv ^{2}$

so result after putting value of (v) and mass . the result 5000j and escape velocity opposite to gravity this value is in negative do ans=-5000j.