Question

A 30-kg object on Venus weighs 266.1 N. What is the value of gravity on Venus? A. 8.87 m/s2

Answer 1

The weight force on an object in a gravitational field is given by $F = mg$ where $m$ is the mass in kg and $g$ is the acceleration due to gravity at that place. Rearranging: 
$g = \frac{F}{m} = \frac{266.1}{30} = 8.87 Nkg^&-1$ or $8.87ms^&-2$
Explanation:

Venus is only slightly smaller than Earth, in both mass and radius, so this answer makes sense, when compared with the value of $9.81 Nkg^&-1$at Earth's surface.