Question

A pigeon of mass $2\text{kg}$ is sitting on a branch of height $7.5\text{m}$. There is a parrot of mass $1\text{kg}$ sitting on the ground. On which of the following branches should the parrot fly to so that the pigeon and the parrot have the same potential energies? (Take $\text{g}=10{\text{m s}}^{-2}$)

• A. $5\text{m}$
• B. $10\text{m}$
• C. $15\text{m}$
• D. $7.5\text{m}$

Answer 1

The correct option is C $15\text{m}$