Question

A cow’s mass is 410 kg and a car’s mass is 565 kg. What is the difference between their weights? A. 1470 N

B. 1520 N
C. 1540 N
D. 1500 N

Show work!

Answer 1

B. 1520 N

Step-by-step explanation:

The weight of each object can be calculated by using the formula:

`W=mg`

where m is the mass of the object and g the acceleration due to gravity.

- The mass of the cow is m = 410 kg, so its weight is

`W=mg=(410 kg)(9.8 m/s^2)=4018 N`

- The mass of the car is m = 565 kg, so its weight is

`W=mg=(565 kg)(9.8 m/s^2)=5537 N`

So, the difference in weight is

`\Delta W = 5537 N - 4018 N = 1519 N`

And the closest answer is

B. 1520 N