Question

Машина равномерно поднимает тело массой 10 кг на высоту 2000см за 40 с чему равно её мощность? ​

Answer 1

Ответ: 50Вт

Объяснение:

Дано:

m=10кг

h=2000cм=20м

t=40c

--------------------

N-?

N=А/t=mgh/t=10*10*20/40=50Вт

Answer 2

Calculating Power for Lifting a Mass

To calculate the power required to lift a mass, we can use the formula:

Power = Work / Time

Where: - Work is the force applied to lift the mass multiplied by the distance it is lifted. - Time is the duration over which the work is done.

Given: - Mass (m) = 10 kg - Height (h) = 2000 cm - Time (t) = 40 s

First, let's convert the height from centimeters to meters: 2000 cm = 20 m

Now, we can calculate the work done: Work = Force × Distance Work = (mass × acceleration due to gravity) × height

The acceleration due to gravity is approximately 9.81 m/s^2.

Work = (10 kg × 9.81 m/s^2) × 20 m Work = 1962.0 J

Now, we can calculate the power: Power = Work / Time Power = 1962.0 J / 40 s Power = 49.05 watts

So, the power required to lift the 10 kg mass to a height of 2000 cm in 40 seconds is 49.05 watts.