The body moves along the x-axis according to the law: x = 10 + t-3t ^ 2. What is the modulus of
September 30, 2021 | education
| The body moves along the x-axis according to the law: x = 10 + t-3t ^ 2. What is the modulus of acceleration of a moving point?
Given:
x (t) = 10 + t – 3 * t ^ 2 – the equation of motion of some material point.
It is required to determine a (meter per second squared) – point acceleration module.
Let us find the dependence of the body’s velocity on time by fulfilling the first-degree derivative of the body motion equation:
v (t) = x (t) ’= (10 + t – 3 * t ^ 2)’ = 1 – 6 * t.
Then the acceleration of the body will be equal to:
a = v (t) ’= (1 – 6 * t)’ = -6 m / s2.
Acceleration module is equal to:
| a | = | -6 | = 6 m / s2.
Answer: the modulus of acceleration of the body is 6 m / s2.
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.