A Ball of Mass 2 Kg Is Launched into a Circular

question 58

Multiple Choice

A ball of mass 2 kg is launched into a circular orbit close to the Earth's surface.Given the mass of Earth is M = 5.98 * 10²⁴ kg and its radius is 6.37 * 10⁶ m.Ignoring air resistance,the energy required to launch the ball from rest into the orbit is

• A)3.14 * 10⁷ J.
• B)6.25 * 10⁷ J.
• C)9.8 * 10⁷ J.
• D)11.5 * 10⁸ J.
• E)6.28 * 10⁹ J.