The largest asteroid, Ceres, in our solar system's asteroid belt has an estimated mass of $3 \cdot 10^{21}$ $3 * 10^21$ kg and an orbital speed of $17900$ $17900$ $m$ $m$ $/$ $/$ $s$ $s$ . What is the asteroid's kinetic energy?

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Answer 1 · 2015-11-22T01:38:42

$4.806 \times 10^{29}$ $4.806xx10^29$

Formula for Kinetic Energy: $\frac{1}{2} m v^{2}$ $1/2mv^2$

Mass : $3 \times 10^{21}$ $3xx10^21$ kg
Velocity: $17900$ $17900$ m/s

$K . E =$ $K.E=$ $\frac{1}{2} (3 \times 10^{21}) {(17900)}^{2}$ $1/2(3xx10^21)(17900)^2$
$K . E =$ $K.E=$ $4.81 \times 10^{29}$ $4.81xx10^29$

The largest asteroid, Ceres, in our solar system's asteroid belt has an estimated mass of 3⋅10213 * 10^21 kg and an orbital speed of 1790017900 mm//ss. What is the asteroid's kinetic energy?