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Alexandra [31]
3 years ago
15

At the end of a race a runner decelerates from a velocity of 8.90 m/s at a rate of 1.70 m/s2. (a) How far in meters does she tra

vel in the next 6.30 s? (Assume the deceleration of 1.70 m/s2 is constant over the full 6.30 s.)
Physics
1 answer:
Ad libitum [116K]3 years ago
7 0

Answer:

x=22.33m

Explanation:

Kinematics equation for constant deceleration:

x =v_{o}*t - 1/2*at^{2}=8.9*6.3-1/2*1.70*6.3^{2}=22.33m

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Answer:

F=ma

here F is force, m is mass and a is accelaration,

According to the question,

F=3*F= 3F

m= 1/3 of m= m/3

a= ?

so the equation becomes,

3F= m/3*a

3F*3= ma

9F=ma

F= ma/9

Therefore accelaration reduces by 1/9.

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On a playground slide, a child has potential energy that decreases by 1000 J while her kinetic energy increases by 900 J. what o
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Answer:

Friction     100 j

Explanation:

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100 J

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2 years ago
In tokyo ghoul book 2 who is the main character and who taught ken kaneki the kagune
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3 years ago
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Two strong magnets were brought close to each other. They were repelling each other. Explain what must have happened.​
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To solve this problem we need to use the proportional relationships between density, mass and volume, together with Newton's second law.

The force can be described as

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Since the difference between the two forces gives us the total Force then we have to

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