The weight of a 4 kg cat with gravity at 10 m/s² is 40 N, calculated using the formula W = m × g.
The weight of an object is defined as the force due to gravity on that object. The formula for calculating weight (W) is the mass (m) of the object multiplied by the acceleration due to gravity (g), which can be denoted as W = m × g. For a 4 kg cat with the acceleration due to gravity taken as 10 m/s², the weight would be 40 N (4 kg × 10 m/s²). The fact that the cat falls 3 meters is irrelevant to the calculation of weight, as weight is a measure of force and not affected by the distance fallen.