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3 years ago

Please help Newton second law of motion is F =ma

Physics

2 answers:

mamaluj [8]3 years ago

6 0

Answer: ma is the formula of Newton's Second Law of Motion. Newton's Second Law of Motion is defined as Force is equal to the rate of change of momentum. For a constant mass, force equals mass times acceleration.

Explanation: Newton's second law of motion is F = ma, or force is equal to mass times acceleration.

NikAS [45]3 years ago

6 0

Hi there!

Using Newton's Second Law:
$F = ma$

F = Net Force (60 N)
m = mass (30 kg)
a = acceleration (m/s²)

Solve for acceleration given the other values.

$60 = 30a\\\\a = \frac{60}{30} = \boxed{2 \frac{m}{s^2}}$

If the net force increases (while the mass is held constant), the acceleration will INCREASE.

If the mass of the object increases (while the net force is held constant), then the acceleration will DECREASE.

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Since the friction coefficient is 0.2, we can calculate the normal force that is used to press the knife against the stone

$N = F_f/\mu = 0.441/0.2 = 2.205 N$

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Please help Newton second law of motion is F =ma ​

Please help Newton second law of motion is F =ma