Question

Будет ли изменяться показание динамометра с подвешенной гирей, если двигать руку с динамометром равномерно вниз?

Answer 1

нет изменяться не будет

Answer 2

Understanding the Situation

You're asking whether the reading on a dynamometer will change if you move your arm with the dynamometer uniformly downward while a weight is suspended from it.

Response

When you move your arm with the dynamometer uniformly downward while a weight is suspended from it, the reading on the dynamometer will not change. This is because the force due to gravity acting on the weight is balanced by the force applied by your arm, resulting in no net force and hence no change in the reading on the dynamometer.

This phenomenon is in line with Newton's first law of motion, which states that an object at rest will stay at rest, and an object in motion will stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

In summary, the reading on the dynamometer will remain constant when you move your arm uniformly downward with a weight suspended from it.

Is there anything else you would like to know?