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SpyIntel [72]
3 years ago
15

Describe newtons first law

Physics
2 answers:
Serhud [2]3 years ago
7 0
Newton's First Law states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. It may be seen as a statement about inertia, that objects will remain in their state of motion unless a force acts to change the motion.
Tanya [424]3 years ago
3 0
It’s states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.
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You are launching a 2 kg potato out of a potato cannon. The cannon is 2.0 m long and is aimed 70 degrees above the horizontal. I
DochEvi [55]

Answer:

Explanation:

The net force on the potatoes is given by:

F= 52 - mgSintheta

F= 52- (2×9.8× Sin70°)

F = 52 -18.4

F= 33.58N

Using Newton's 2nd law

F = ma

a=F/m = 33.58/ 2 = 16.79m/s^2

Using the equation of motion:

V^2= u^2 + 2as

V^2 = 0 + 2× 16.79 x2

V^2 = 67.16

V=sqrt(68.16)

V= 8.195m/s This is the exit velocity of the potatoes

Kinetic energy, K.E = 1/2mv^2

KE= 1/2 × 2 × 8.195^2

KE = 67.16J

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3 years ago
For each of the problems below, you will need to draw a graph to find the solution.
Gelneren [198K]

Answer:

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Explanation:

3 0
2 years ago
Solar system help please!
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Gekata [30.6K]

Answer:

a physical change

Explanation:

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Answer:

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3 years ago
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