Question

If potential energy of a satellite is U. Then energy needed to escape it is:

• A. $\frac{U}{2}$
• B. $U$
• C. $-U$
• D. -$\frac{U}{2}$

Answer 1

The correct option is A $\frac{U}{2}$

As we know that the energy required to escape a satellite is the half of its potential energy and here potential energy of satellite is U.

So from this we can clearly say that option 'A' is correct