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Vaselesa [24]
2 years ago
11

The occupants of a vehicle not wearing a seat belt, traveling at a speed of 50 mph and colliding head-on with another vehicle, w

ill
Physics
1 answer:
Temka [501]2 years ago
6 0

If the occupants of the vehicle are not wearing a seat belt, they will continues moving forward at the same speed when brake is applied.

<h3>Newton's first law of motion</h3>

Newton's first law of motion states that an object at rest or uniform motion in a straight line will continue in that form unless it is acted upon by an external force.

The law is also called the law of inertia.

Thus,  if the occupants of the vehicle are not wearing a seat belt, they will continues moving forward at the same speed when brake is applied.

Learn more about inertia here: brainly.com/question/1140505

#SPJ4

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A 0.0382-kg bullet is fired horizontally into a 3.78-kg wooden block attached to one end of a massless, horizontal spring (k = 8
wel

Answer:

280.87 ms⁻¹

Explanation:

Consider the motion of the bullet-block combination after collision

m = mass of the bullet = 0.0382 kg

M = mass of wooden block = 3.78 kg

V = velocity of the bullet-block combination after collision

k = spring constant of the spring = 833 N m⁻¹

A = Amplitude of oscillation = 0.190 m

Using conservation of energy

Kinetic energy of  bullet-block combination after collision = Spring potential energy gained due to compression of spring

(0.5)(m + M)V^{2} = (0.5)kA^{2}

(0.0382 + 3.78)V^{2} = (833)(0.190)^{2}

V = 2.81 ms⁻¹

v_{o} = initial velocity of the bullet before striking the block

Using conservation of momentum for the collision between bullet and block

m v_{o} = (m + M) V

(0.0382) v_{o} = (0.0382 + 3.78) (2.81)

v_{o} = 280.87 ms⁻¹

7 0
3 years ago
you push a box across the floor with a force of 30n you it 15 meters in 8 seconds. how much work did you do how much power did y
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20m/s newtons per second 


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3 years ago
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After the double-blind review policy was instituted, what percentage of published papers had a male first author?
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Explanation:

4 0
3 years ago
You rub a clear plastic pen with wool, and observe that a strip of invisible tape is attacted to the pen. Assuming that the pen
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Answer:

option B

Explanation:

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Due to rubbing, the pen gets negatively charged.

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So, when the pen is negatively charged the tape might be positively charged or the tape might be uncharged.

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The weights in newtowns for the given masses are

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