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Kisachek [45]
3 years ago
12

During a demolition derby, vehicle 1 collided vehicle 2 going in the opposite direction and came to an immediate stop. If the ve

hicles are of different masses and were not travelling at the same velocity, what can be concluded about them? *
Physics
1 answer:
snow_tiger [21]3 years ago
7 0

Answer:

Their change in momentum is the same in magnitude and opposite in direction

Explanation:

The momentum of an object is defined as:

p=mv

where

m is the mass of the object

v is the velocity of the object

Therefore, the change in momentum of an object is

\Delta p = m\Delta v

where \Delta v is the change in velocity.

During a collision, the force experienced by an object is equal to the rate of change of momentum:

F=\frac{\Delta p}{\Delta t}

where \Delta t is the duration of the collision.

According to Newton's third law of motion, the force exerted by vehicle 1 on vehicle 2 during the collision is equal (and opposite) to the force exerted by vehicle 2 on vehicle 1, so

F_1=-F_2

Which means

\frac{\Delta p_1}{\Delta t}=-\frac{\Delta p_2}{\Delta t}

And since the duration of the collision is the same for the two vehicles, this becomes

\Delta p_1 =-\Delta p_2

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Answer:

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Juliana was late to physical science class and missed the beginning of the notes, including the title. These are the notes she t
olga_2 [115]

The correct option to the question is Matter.

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You wad up a piece of paper and throw it into the wastebasket. How far will
vitfil [10]

The range of the piece of paper is C) 1.4 m

Explanation:

The motion of the piece of paper is the motion of a projectile, which consists of two separate motions:

- A uniform motion along the horizontal direction, with constant velocity

- A uniformly accelerated motion along the vertical direction, with constant acceleration (the acceleration of gravity, g=9.8 m/s^2)

From the equation of motion, it is possible to find an expression for the range (the total horizontal distance covered) of a projectile, which is given by:

d=\frac{u^2 sin 2\theta}{g}

where

u is the initial velocity

\theta is the angle of projection

g is the acceleration of gravity

For the piece of paper in this problem,

u = 4.3 m/s

\theta=65^{\circ}

Substituting,

d=\frac{(4.3)^2 sin(2\cdot 65^{\circ})}{9.8}=1.45 m \sim 1.4 m

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6 0
3 years ago
Read 2 more answers
PLS HELP ASAP WILL MARK BRAIN and pls explain your answer....
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Answer:

it is sublimation because There are three ways heat is transferred into and through the atmosphere:

radiation.

conduction.

convection.

Explanation:

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Answer:

d

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