tolong di jawab pertanyaan.x yg ada di foto~

V=√GM/r
=√6.67.10^-¹¹ . 2.10^³°/15.10^7
=√13.34 ×10¹²/15
=√0.89 .10¹²
=√0.89.10¹²
=0,94 ×10⑥ Km/s