A car starts from rest, speeds up with constant acceleration, and travels 400 meters in 10 seconds. What was the acceleration of
1 answer:
Answer:
Acceleration of the car will be
Explanation:
We have given that car starts from rest so initial velocity of the car u = 0 m/sec
And car traveled 400 m in 10 sec
So distance traveled by car s = 400 m
Time taken to compete this distance t = 10 sec
We have to find the acceleration of the car
From second equation of motion we know that
So
So acceleration of the car will be
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Answer: Option (C) is the correct answer.
Explanation:
Formula for moment of inertia is as follows.
M.I =
Hence, moment of inertia of two rods is as follows.
M.I of two rods =
=
As third rod have no connection with vertices. So, moment of inertia of a rod along an axis passing through its center is as follows.
M.I =
=
=
Using parallel axis theorem moment of inertia through vertices is as follows.
=
h =
Now, we will calculate the moment of inertia of third rod about vertices is as follows.
=
= 5
Therefore, total moment of inertia is calculated as follows.
Total M.I =
=
Thus, we can conclude that the moment of inertia of the wire triangle about an axis perpendicular to the plane of the triangle and passing through one of its vertices is .