When you drop a 0.45 kg apple, Earth ex- erts a force on it that accelerates it at 9.8 m/s?
toward the earth's surface. According to New
ton's third law, the apple must exert an equal
but opposite force on Earth
If the mass of the earth 3.98 x 1024 kg, what
is the magnitude of the earth's acceleration
toward the apple?
Answer in units of m/s