Question

If a cow's mass is 391 kg and a car's mass is 425 kg, what is the difference of their weight?

a.340 N
b. 325 N
c. 318 N
d. 333 N

Answer 1

The difference in weight between the cow and the car, given their masses, is 333 N when considering Earth's gravitational acceleration of 9.81 m/s².

Step-by-step explanation:

To find the difference in weight between the cow and the car, we will calculate the weight of each using the formula for weight W = mg, where m is the mass and g is the acceleration due to gravity (approximately 9.81 m/s² on Earth), and then subtract them.

The cow's weight is Wcow = 391 kg × 9.81 m/s² = 3836.71 N.

The car's weight is Wcar = 425 kg × 9.81 m/s² = 4169.25 N.

The difference in weight is 4169.25 N - 3836.71 N = 332.54 N.

Therefore, the nearest answer to the difference in their weight is (d) 333 N.