Question

M= 30кг g=10 h=50cм A-?​

Answer 1

Ответ:

Сила тяжести (вес) Р=mg=30*10=300 H

Объяснение:

Answer 2

To find the work done when an object is lifted to a certain height against gravity, you can use the formula for gravitational potential energy:

Potential Energy (PE) = m * g * h

Where:

• PE is the potential energy in joules (J).
• m is the mass of the object in kilograms (kg).
• g is the acceleration due to gravity (approximately 10 m/s²).
• h is the height in meters (m).

In your case:

• Mass (m) = 30 kg
• Acceleration due to gravity (g) = 10 m/s²
• Height (h) = 50 cm, which needs to be converted to meters (1 m = 100 cm, so 50 cm = 0.5 m)

Now, plug these values into the formula:

PE = 30 kg * 10 m/s² * 0.5 m = 1500 J

So, the potential energy is 1500 joules. This is the work done when a 30 kg mass is lifted to a height of 50 cm against gravity.