Question

A 75 kg astronaut is repairing Hubble telescope at a height of 600 km above the surface of the earth. Find the his weight there.

• A. 740 N
• B. 700 N
• C. 650 N
• D. 610 N

Answer 1

Answer: (D)

610 N

Answer 2

mg' = mg$\left( 1 - \frac{2h}{R} \right)$ = 75 × 10(1 - .185) = 610 N