Answer:
<h2>2.5 m/s²</h2>Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
f is the force
m is the mass
From the question we have
We have the final answer as
<h3>2.5 m/s²</h3>Hope this helps you
Hi there!
a)
When the motor is first turned on, the coils are initially stationary. Thus, there is no change in magnetic flux and, consequently, no induced emf.
Therefore:
Since there's no back emf:
Solving for i using Ohm's Law:
b)
We are given that at max speed, the back EMF is 70.0 V.
Using the same equation as above:
Plugging in the values:
Solving for current: