The radius of the earth is R and the gravitational acceleration on the earth surface is 9.81 ms-2. What is the value of the gravitational acceleration at a height R?
Jejari Bumi ialah R dan nilai pecutan graviti di permukaan Bumi ialah 9.81 ms-2. Berapakah nilai pecutan graviti pada ketinggian R?
A 2.45 ms-2
B 4.91 ms-2
C 9.81 ms-2
D 1.96 ms-2
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Answer
A