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Bezzdna [24]
3 years ago
12

Mass of 55 kg riding in a car at20m/s slams on brakes rests in.5 sec how much force from seatbelt

Physics
1 answer:
Evgen [1.6K]3 years ago
5 0
2,200 Newtons.

F = ma

v f = v i + at
0mls = 20mls + a(.5s)

-20mls/.5s = -40mls squared

-40mls squared (55kg) = 2,200 Newtons.

Hope this helps!
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Plz help me
Reil [10]

Answer:

Yes

Explanation:

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4 years ago
Sound is a disturbance that travels through a medium as a
Vinvika [58]

Answer:

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5 0
3 years ago
20. A mass of gas has a volume of 4 m3, a temperature of 290 K, and an absolute pressure of 475 kPa. When the gas is allowed to
aliina [53]
Given:\\V_1=4m^3\\T_1=290K\\p_1=475kPa\\\\V_2=6.5m^3\\T_2=277K\\\\Find:\\p_2=?\\\\Solution:\\\\ \frac{pV}{T} =const.\\\\ \frac{p_1V_1}{T_1} = \frac{p_2V_2}{T_2} \\\\\frac{p_1V_1T_2}{T_1}=p_2V_2\\\\\frac{p_1V_1T_2}{T_1V_2}=p_2\\\\p_2=p_1 \frac{V_1}{V_2}  \frac{T_2}{T_1} \\\\\\p_2=475kPa\cdot  \frac{4m^3}{6.5m^3} \cdot  \frac{277K}{290K} \approx 279.2kPa\\\\Correct\;is\;answer\;\;C
7 0
3 years ago
Kyle has the mass of 54 kg and is jogging at a velocity of m/s. What is Kyle’s kinetic energy
inysia [295]

m = mass = 54 kg

v = velocity = 3 m/s

KE =  (1/2)*m*v^2

KE =  (1/2) * 54 * (3)^2

KE = 243 J

Hope this helps!



3 0
3 years ago
Read 2 more answers
What is the area of the circle with a radius of 12.77m
Arada [10]
A=pi r^2
A=( 3.14159.......)(12.77)^2
A= 512.30m^2
8 0
3 years ago
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