Question

A certain rocket can do a maximum of `2.00 times 10^10`J of work on a 500-kg object. What is the maximum distance from the center of the Earth the object can reach?

What is the speed of the object when it is 1.5 x 10 m from the center of the Earth?

Answer 1

`4`x`10^6`m

Explanation:

Gravitational potential energy(j)=mass(kg) x gravitational field strength(10N/Kg) x height(m)
2 x `10^10` = 500 x 10 x height
height= `(2 * 10^10)/(500 * 10)`
= 4x`10^6`m