Question

10. Тело массой 4 кг имеет скорость 2 м/с. Какой энергией обладает тело?

Answer 1

Дано: 
m=4 кг     E=mV2/2
V=2м/c    E=4*4/2=8
________
E=?

Answer 2

Calculation of Kinetic Energy

To calculate the energy possessed by an object, we can use the formula for kinetic energy:

Kinetic Energy (KE) = (1/2) * mass * velocity^2

Given that the mass of the object is 4 kg and its velocity is 2 m/s, we can substitute these values into the formula to find the kinetic energy:

KE = (1/2) * 4 kg * (2 m/s)^2

Simplifying the equation:

KE = (1/2) * 4 kg * 4 m^2/s^2

KE = 8 Joules

Therefore, the body possesses an energy of 8 Joules.