0.0605J is your answer. Use the formula KE=1/2mv^2
why did my answer get deleted??
oh yeah i put a link on there- oopsies.
I wont this time!
I got 30!
Answer:
sweeps out equal areas in equal times.
Explanation:
As we know that there is no torque due to Sun on the planets revolving about the sun
so we will have

now we have

now we also know that

so rate of change in area is given as

so we will have


since angular momentum and mass is constant here so
all planets sweeps out equal areas in equal times.
Gravitational potential energy :)