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Rzqust [24]
3 years ago
12

A person slaps her leg with her hand, which results in her hand coming to rest in a time interval of 2.25 ms2.25 ms from an init

ial speed of 4.25 m/s4.25 m/s . What is the magnitude of the average contact force exerted on the leg, assuming the total mass of the hand and the forearm to be 1.75 kg1.75 kg
Physics
1 answer:
Aliun [14]3 years ago
4 0

Answer:

The force is 3305.6 N.

Explanation:

Final velocity, v = 0

time, t = 2.25 ms

initial velocity, u = 4.25 m/s

mass, m = 1.75 kg

Let the acceleration is a.

Use first equation of motion.

v = u + a t

0 = 4.25 + a x 0.00225

a = - 1888.9 m/s^2

The force is

F = ma

F = 1.75 x 1888.9

F = 3305.6 N

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Answer:

Proof is given below

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Since the y' and z' axes are perpendicular to the direction of motion there is no contraction

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The stones are launched from the top of a tall building. One stone is thrown in a direction 15.0 ∘ above the horizontal with a s
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A person is filling a knee-high bucket with water using a garden hose and holding it such that water discharges from the hose at
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Yes i am agree with this suggestion

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You are holding one end of an elastic cord that is fastened to a wall 3.0 m away. You begin shaking the end of the cord at 2.3 H
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