What is newstons 2nd law

Physics

2 answers:

Alja [10]3 years ago

6 0

Answer:

Newton's second law of motion pertains to the behavior of objects for which all existing forces are not balanced. The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object.

agasfer [191]3 years ago

3 0

Answer:it states that the rate of change of momentum is proportional to the force,and take place in the direction of the force,

Explanation:it states that the rate of change of momentum is proportional to the impressed force and take place in the direction of the force.

Mathematically f=(mv-mu)/t

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A hot air balloon is on the ground, 200 feet from an observer. The pilot decides to ascend at 100 ft/min. How fast is the angle

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0.0031792338 rad/s

Explanation:

$\theta$ = Angle of elevation

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$tan\theta=y\dfrac{y}{200}\\\Rightarrow y=200tan\theta$

Differentiating with respect to t we get

$\dfrac{dy}{dt}=\dfrac{d}{dt}200tan\theta\\\Rightarrow \dfrac{dy}{dt}=200sec^2\theta\dfrac{d\theta}{dt}\\\Rightarrow 100=200sec^2\theta\dfrac{d\theta}{dt}\\\Rightarrow \dfrac{d\theta}{dt}=\dfrac{100}{200sec^2\theta}\\\Rightarrow \dfrac{d\theta}{dt}=\dfrac{1}{2}cos^2\theta$