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PIT_PIT [208]
3 years ago
13

Quincia is traveling at a speed of 35 m/s sees a squirrel run across the road in front of her and slams on the brakes. Four seco

nds later she comes to a complete stop. What is her acceleration?
Physics
1 answer:
kotegsom [21]3 years ago
8 0
Her <span>acceleration is 8.75 hope is helps</span>
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In the same year, the average finishing time for U.S. women was 4 hours and 41 minutes. What was the average female speed in mil
Nana76 [90]

We have that for the Question "In the same year, the average finishing <em>time</em> for U.S. women was 4 <u>hours </u>and 41 <em>minutes</em>. What was the average female speed in miles per <em>hour</em>?" it can be said that

The average female speed in miles per hour

V_a=\frac{D}{4.683hours}

From the question we are told

In the same year, the <u>average</u> finishing <em>time</em> for U.S. women was 4 <u>hours </u>and 41 <em>minutes</em>. What was the average female speed in <u>miles</u> per <em>hour</em>?

<h3>Average speed </h3>

This is defined as the collective <u>mean</u> of different travel <em>intervals </em>

Generally the equation for Speed   is mathematically given as

V=\frac{Distance}{Time}

Therefore

For  4 <u>hours </u>and 41 <em>minutes=4.683hours</em>

This travels time was <em>obtained </em>over a  series of distance

<em>Hence</em>

<em>Distance D</em>

The average female <em>speed</em> in miles per hour

V_a=\frac{D}{4.683hours}

For more information on speed visit

brainly.com/question/7359669

8 0
2 years ago
Plz plz plz plz plz plz hlep me
Amanda [17]

Answer:

decantation, distilling, freezing

6 0
3 years ago
Suppose students experiment with the tube and a variety of darts. Some darts have higher masses than others but are the same aer
san4es73 [151]

Answer:

The dart with the small mass will travel the farthest distance.

Explanation:

Acceleration is proportional to force times mass, and inertia is proportional to mass. Inertia is the reluctance of a moving body to stop, and a stationary body to start moving (inertia increses with mass). Assuming they both have the same aerodynamic design, and that they are both launched with the same force applied for the same time duration, the dart with less small mass will accelerate faster than the big mass dart. From this we can see that the small dart will have covered a longer distance before the effect of the force stops, when compared to the more massive dart.

5 0
3 years ago
A train accelerates at -1.5 m/s2 for 10 seconds. If the train had an initial
Gnom [1K]

Answer:

17 m/s

Explanation:

Using formula a = (v-u) /t

acceleration a =  -1.5 m/s2

final velocity v = unknown

initial velocity u = 32 m/s

time t = 10s

-1.5 = (v-32)/10

-15 = v - 32

-15 + 32 = v

v = 17 m/s

7 0
3 years ago
A block is projected up a frictionless inclined plane with initial speed v0 = 1.72 m/s. The angle of incline is θ = 44.8°. (a) H
Snowcat [4.5K]

Explanation:

Given

initial velocity(v_0)=1.72 m/s

\theta =44.8{\circ}

using v^2-u^2=2as

Where v=final velocity (Here v=0)

u=initial velocity(1.72 m/s)

a=acceleration   (gsin\theta )

s=distance traveled

0-(1.72)^2=2(-9.81\times sin(44.8))s

s=0.214 m

(b)time taken to travel 0.214 m

v=u+at

0=1.72-gsin(44.8)\times t

t=\frac{1.72}{9.8\times sin(44.8)}

t=0.249 s

(c)Speed of the block at bottom

v^2-u^2=2as

Here u=0 as it started coming downward

v^2=2\times gsin(44.8)\times 0.214

v=\sqrt{2.985}

v=1.72 m/s

3 0
3 years ago
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