8. Centripetal Forces & Gravitation
Newton's Law of Gravity
16PRACTICE PROBLEM
As a Mars rover ascends a hill of height ∆z above the Martian surface, where ∆z is much smaller than (the radius of Mars), the value of the gravitational acceleration, , is altered. The approximate change in can be expressed as
where is the gravitational acceleration at Mars's surface. What is the meaning of the minus sign in this relation?
As a Mars rover ascends a hill of height ∆z above the Martian surface, where ∆z is much smaller than (the radius of Mars), the value of the gravitational acceleration, , is altered. The approximate change in can be expressed as
where is the gravitational acceleration at Mars's surface. What is the meaning of the minus sign in this relation?