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2 years ago

Conservation of Momentum

Physics

1 answer:

aksik [14]2 years ago

3 0

Hi there!

This collision is an example of an inelastic collision since kinetic energy is lost from the collision.

We can represent this using the conservation of momentum formula:

m1v1 + m2v1 = m1vf + m2vf

Where:

m1 = blue ball

m2 = green ball

We know that the final velocity of the blue ball is 0, so:

m1v1 + m2v1 = m2vf

Rearrange to solve for the speed of the green ball:

(m1v1 + m2v1)/m2 = vf

Plug in given values:

((0.15 · 3) + (0.15 · 2)) / 0.15 = 5 m/s

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A 35 kg box rests on the back of a truck. The coefficient of static friction bet?005 (part 1 of 2)A 35 kg box rests on the back

elena-14-01-66 [18.8K]

Answer with Explanation:

We are given that

Mass of box=35 kg

Coefficient of static friction between box and truck bed=0.202

Acceleration due to gravity= $9.8 m/s^2$

a.We have to find the force by which the box accelerates forward.

Force by which box accelerates= $\mu mg=0.202\times 9.8\times 35$

Force by which box accelerates= $62.286 N$

b.We have to find the maximum acceleration can the truck have before the box slides.

Force =friction force

$ma=\mu mg$

$a=\mu g=9.8\times 0.202=1.9796 m/s^2$

Hence, the truck can have maximum acceleration before the box slide= $1.9796 m/s^2$

3 0

3 years ago

Elementary physics in a real automobile accident

Fudgin [204]

Is this even a question

7 0

3 years ago

An unbanked circular highway curve on level ground makes aturn

tino4ka555 [31]

Answer:

Explanation:

Given

Velocity of traffic $v=60\ mi/hr\approx 26.82\ m/s$

Maximum value of Centripetal force is one-tenth of weight

such that $(F_c)_{max}=\frac{mg}{10}$

to make a safe turn centripetal force with radius of curvature r is given by

$F_c=\frac{mv^2}{r}$

$(F_c)_{max}=\frac{mg}{10}=F_c=\frac{mv^2}{r}$

$\frac{mg}{10}=\frac{mv^2}{r}$

$r=\frac{10v^2}{g}$

$r=\frac{10\times 26.82^2}{9.8}$

$r=733.99\approx 734\ m$

4 0

4 years ago

PLS HELP ILL GIVE U BRAINLIST!!

igomit [66]

<u>Answer:</u> The correct statement is True.

<u>Explanation:</u>

There are two types of charges in the electric field:

Negative charge known as electrons
Positive charge known as holes

The above two are oppositely charged species and we also know that electric current is the flow of free electrons in a current.

Negative charges (Electrons) flow from the negative terminal to the positive terminal while positive charges (holes) flow from the positive terminal to the negative terminal. Thus, they move in the opposite direction.

Hence, the correct statement is True.

4 0

3 years ago

Romanesque (Gothic) structures replaced large parts of load-bearing walls with stained-glass windows by using ___

Ivan

Answer:

ogive arc

Explanation:

In the Gothic structures, the load walls are replaced by an ogive-type arch that moves the load towards the buttresses, load structures parallel to the large stained glass windows.

This type of structure allows to use larger stained glass windows without risk structures of the large churches

The answer is: ogive arc

6 0

3 years ago