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Reika [66]
3 years ago
14

A truck traveling at 100 km/hr strikes an unfortunate bug and splatters it. The acceleration resulting from the impact is:______

_
a. Greater for the truck
b. Greater for the bug
b. The same for both the bug and the truck
d. Impossible to determine
Physics
1 answer:
KATRIN_1 [288]3 years ago
4 0

Answer:

<h2>b. Greater for the bug</h2>

Explanation:

The conservation of linear momentum states that the momentum before impact equals the momentum after impact

Also, when two objects collide,  the change of momentum of particles m1 and m2 are equal in magnitude and opposite in sign and the total momentum change equals zero. Hence during a collision, Each object experiences the same force for the same amount of time, leading to the same impulse, and subsequently the same momentum change. in general, it is only the acceleration and the velocity components that differ for the two objects during the interaction.

Consequently, The object with the least mass always receives the greatest velocity change and acceleration.

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A small mass is released from rest from the edge of a frictionless, hemispherical bowl. As the mass passes through the bottom of
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Answer:

a=2g

Explanation:

Let the radius of the hemisphere is R. The mass is released from rest so the initial speed is equal to zero and acceleration is equal to the g.

By the Newton's 3rd equation,

v^2=u^2+2as\\v^2=2gR\\v=\sqrt{2gR}

Now, at the bottom hemisphere the centripetal acceleration will act on the mass and the direction of this force is towards center,

a_c=\frac{v^2}{R}\\a_c=\frac{(\sqrt{2gR} )^2}{R}\\a_c=2g

Hence, the acceleration on the bottom of the hemisphere is equal to the 2g.

4 0
3 years ago
A tough kid on a tricycle has combined mass 32 kg. She starts from rest and travels 3.5 m in 2.5 s. What is the net force used t
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Answer:

<h3>F = 35.84N</h3>

Explanation:

Force = mass * acceleration (Newton's second law of motion)

Given

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There is no "why", because that's not what happens.  The truth is
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Whatever the weight of a solid object is in air, that weight will appear
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3 years ago
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