Describe how an electromagnet can be switched on and off.
1 answer:
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Answer:
The acceleration of car 2 is four times of the acceleration of car 1.
Explanation:
The centripetal acceleration of the object is possessed when it moves in a circular path. It is given by :
In this case, two race cars are driving at constant speeds around a circular track. Both cars are the same distance away from the center of the track, but car 2 is driving twice as fast as car 1.
So,
1 and 2 represent car 1 and car 2 respectively.
So,
So, the acceleration of car 2 is four times of the acceleration of car 1.
Answer:
The average speed will be "1038 mph".
Explanation:
Period for one revolution is:
T = 24 hours
= 86,400 sec
x = c = 2πr
The given values is:
r = 6.38×10⁶ m
Now,
⇒
Or,
⇒
On substituting the values, we get