On a body weighing 1 kg, a force of 3N (newton) acts for 2 seconds, determine the kinetic energy.
| December 19, 2020 | education
Given:
m = 1kg
F = 3H
t = 2c
Eк-?
Decision
U = At, and we represent in the form the formula a = F / m
U = Ft / m
U = 3 * 2/1 = 6 (m / s)
Ekn = mU ^ 2/2
Eк = 1 * 36/2 = 18 (J)
Answer: Ek = 18J
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
