Question

Штангист поднял штангу массой 80кг на высоту 230см.какую работу совершил штангист? помогите пж ​

Answer 1

A=F•S
S=h
F=m•g
F=80•10=800(Н)
A=80•2,3=184(дж)

Answer 2

Ответ: 1840Дж

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m=80кг

h=230см->2.3м

А-?

А=FS->mgh->80*10*2.3=1840Дж

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Answer 3

Calculation of Work Done by the Weightlifter

To calculate the work done by the weightlifter in lifting the barbell, we can use the formula:

Work = Force x Distance

In this case, the force is equal to the weight of the barbell, which is 80 kg, and the distance is the height the barbell was lifted, which is 230 cm (or 2.3 meters).

Plugging in the values into the formula, we get:

Work = 80 kg x 2.3 m

Calculating this, we find that the weightlifter did 184 joules of work in lifting the barbell.

Please note that the unit of work is joules (J), which is the standard unit of energy in the International System of Units (SI).