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Masja [62]
3 years ago
5

3. A hunter shoots a 2 kg arrow accelerating it at 15m/s2 . How much force does this require?

Physics
1 answer:
choli [55]3 years ago
6 0

Answer: 30 Newton

Explanation:

Force can be obtained from the product of Mass M and acceleration A. The SI unit of force is Newton.

Thus, Force = MA

Mass of the arrow = 2kg

Acceleration of the arrow = 15m/s2

Force = 2kg x 15m/s2

Force = 30 Newton

Thus, the hunter require a force of 30 newton

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A 10.0-kg box starts at rest on a level floor. An external, horizontal force of 2.00 × 102 N is applied to the box for a distanc
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vf = 11.2 m/s

Explanation:

m = 10 Kg

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∑ Fx = m*a   (→)

F - Ffriction = m*a  ⇒  F - (μ*N) = F - (μ*m*g) = m*a   ⇒  a = (F - μ*m*g)/m

⇒    a = (2*10² N - 0.44*10 Kg*9.81 m/s²)/10 Kg = 15.6836 m/s²

then , we use the equation

vf² = vi² + 2*a*x    ⇒    vf = √(vi² + 2*a*x)

⇒   vf = √((0)² + 2*(15.6836 m/s²)*(4.00m)) = 11.2 m/s

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A car with a mass of 1. 2 × 103 kilograms starts from rest and attains a speed of 20 meters/second in 5 seconds. What net force
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Answer:

The formula for force according to Newton's second law of motion is F=ma or force for an object to move is equal to mass times acceleration.

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A protractor to measure the angle of the inclined plane with the horizontal

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