Question

Определите кинетическую энергию парашютиста, масса которого 80 кг, в момент, когда он падает со скоростью 10 м / с

Answer 1

Ek = m V^2 / 2 = 80 * 100 / 2 = 4*10^3 Дж

Answer 2

Calculation of Kinetic Energy

To calculate the kinetic energy of a parachutist, we can use the formula for kinetic energy:

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

Given: - Mass of the parachutist (m) = 80 kg - Velocity of the parachutist (v) = 10 m/s

Using the formula, we can calculate the kinetic energy:

KE = (1/2) * 80 kg * (10 m/s)^2

Let's calculate the value:

KE = (1/2) * 80 kg * 100 m^2/s^2

KE = 4000 kg * m^2/s^2

Therefore, the kinetic energy of the parachutist in the given scenario is 4000 kg * m^2/s^2.