3 years ago

De ce nu putem masura o bandă

Physics

2 answers:

icang [17]3 years ago

3 0

I don’t speak Spanish sorry but I wish I could help you

Marianna [84]3 years ago

3 0

Answer:

you cnat measure a band because they come in all shapes and sizes they can be streched or to wide.

Explanation: the only way which is sometimes innacurate is if you cut the rubber band and measure it but you still cant measure it

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3 years ago

A high-jump athlete leaves the ground, lifting her center of mass 1.8 m and crossing the bar with a horizontal velocity of 1.4 m

Romashka [77]

Answer:

The minimum speed when she leave the ground is 6.10 m/s.

Explanation:

Given that,

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$K.E+P.E=P.E+K.E$

$\dfrac{1}{2}mv_{1}^2+0=mgh+\dfrac{1}{2}mv_{2}^2$

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$v_{1}=\sqrt{2\times18.62}$

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Hence, The minimum speed when she leave the ground is 6.10 m/s.

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De ce nu putem masura o bandă​

De ce nu putem masura o bandă