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Estimate the net force needed to accelerate a 1000-kg car from rest.

AND

Estimate the weight of a 1000-kg car that is accelerating at 3m/s/s.

Sagot :

rafaleo84

Answer:

See the answers below.

Explanation:

We can solve both problems using Newton's second law, which tells us that the sum of forces on a body is equal to the product of mass by acceleration.

∑F =m*a

where:

F = force [N] (units of newtons)

m = mass = 1000 [kg]

a = acceleration = 3 [m/s²]

[tex]F = 1000*3\\F=3000[N][/tex]

And the weight of any body can be calculated by means of the mass product by gravitational acceleration.

[tex]W=m*g\\W=1000*9.81\\W=9810 [N][/tex]

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