What type of device is a car engine?
1 answer:
You might be interested in
Answer:
The magnetic field is
Explanation:
From the question we are told that
The mass of the metal is
The current is
The distance between the rail(length of the rod ) is
The coefficient of kinetic friction is
Generally the magnetic force is mathematically represented as
Given that the rod is moving at a constant velocity, it
=>
Where is the kinetic frictional force which is mathematically represented as
So
=>
substituting values
=>
=>
Answer:
b. it has the same centripetal acceleration as car A.
Explanation:
According to the question, the data provided is as follows
Constant speed of car A = 20 m/s
Constant tangential acceleration until its speed is 40 m/s
Based on the above information, the true statement is the same centripetal acceleration as car A because
As we know that
Centripetal acceleration is
where,
= velocity
r = radius of the path
Now if both car A and car B moving in the same or identical circular path having the same velocity so in this case there is the same centripetal acceleration for that particular time
hence, the second option is correct