yourfrienddinne1234 yourfrienddinne1234
  • 13-01-2019
  • Physics
contestada

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

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Respuesta :

skyluke89
skyluke89 skyluke89
  • 23-01-2019

Answer:

B. 1520 N

Explanation:

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

[tex]W=mg[/tex]

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

[tex]W=mg=(410 kg)(9.8 m/s^2)=4018 N[/tex]

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

[tex]W=mg=(565 kg)(9.8 m/s^2)=5537 N[/tex]

So, the difference in weight is

[tex]\Delta W = 5537 N - 4018 N = 1519 N[/tex]

And the closest answer is

B. 1520 N



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