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DENIUS [597]
3 years ago
15

10. A person is about to kick a soccer ball. Consider the leg and foot to be a single rigid body and that it rotates about a fix

ed axis through the knee joint center. Immediately prior to impact the leg and foot are in the vertical direction and the distal end of the foot has an acceleration of 10 g in the horizontal direction. The muscle force vector makes an angle of 15 degrees with the vertical and has a moment arm of 5 cm from the knee joint center. Assume the person is 1.7 m tall and has a mass of 75 kg. Find the force in the muscle
Physics
1 answer:
statuscvo [17]3 years ago
4 0

Answer:

i don't know but i hope you get it right

Explanation

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High frequency = D, short wavelength
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You are traveling on an interstate highway at the posted speed limit of 70 mph when you see that the traffic in front of you has
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Answer:8.75 s,

136.89 m

Explanation:

Given

Initial velocity=70 mph\approx 31.29 m/s

velocity after 5 s is 30 mph\approx 13.41 m/s

Therefore acceleration during these 5 s

a=\frac{v-u}{t}

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therefore time required to stop

v=u+at

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initial velocity =31.29 m/s

0=31.29-3.576\times t

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(b)total distance traveled before stoppage

v^2-u^2=2as

0^2-31.29^2=2\times (-3.576)\cdot s

s=136.89 m

3 0
3 years ago
A speaker vibrates at a frequency of 200 hz what is its period
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5 0
3 years ago
Read 2 more answers
State Newton's three laws of motion.​
tresset_1 [31]

Answer:

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Newton's third law states that if an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A. This law represents a certain symmetry in nature: forces always occur in pairs, and one body cannot exert a force on another without experiencing a force itself.

Explanation:

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shepuryov [24]

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8 0
2 years ago
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