The subway escalator moves at a speed of 0.75 m / s. Find the time it takes for a passenger to move 20 m
| March 31, 2021 | education
The subway escalator moves at a speed of 0.75 m / s. Find the time it takes for a passenger to move 20 m relative to the ground if he himself walks in the direction of the escalator for 0.25 s. reference system associated with the escalator.
Since the passenger is moving in the direction of movement of the escalator, the passenger’s ground speed
Vz = Ve + Vp.
We will find the time by the formula
T = S / Vz.
Substitute the values and calculate the required
T = S / (Ve + Vp);
T = 20 / (0.75 + 0.25) = 20.
Answer: 20 s.
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.
