The number of times something happens in one second is its "frequency".
Answer:
The correct answer to the following question will be Option A (I1 > I2).
Explanation:
Method for moment of inertia because of it's viewpoint including object at a mean distance "r" from the axis is,
⇒ mr²
<u>For Case 1:</u>
Let the length of a rod be "r".
The axis passes via the middle of that same rod so that the range from either the axis within each dumbbell becomes "".
Now,
Now total moment of inertia = sum of inertial moment due to all of the dumbbell
⇒
⇒
<u>For Case 2:</u>
Axis moves via one dumbbell because its range from either the axis becomes zero (0) and its impact is zero only at inertia as well as other dumbbell seems to be at a range "r" from either the axis
Now,
Total moment of inertia = moment of inertia of dumbbell at distance "r".
And now we can infer from this one,
⇒
So that "I1 > I2" is the right answer.
I would say it B) in the same direction feel free to ask me more question
Answer:
Part a)
Part b)
Part C)
Part d)
In horizontal direction velocity will remain constant
in vertical direction we have
Explanation:
Part a)
Horizontal speed of the cannon
angle of projection
now we have
horizontal speed =
vertical speed =
now the time taken by it to cover the distance 100 m from the wall
Part b)
Since it hits the ground in the same time
so the height of the castle is given as
Part C)
At highest point of the projection
the vertical component of the velocity will become zero
so we will have
Part d)
In horizontal direction velocity will remain constant
so we have
in vertical direction we have
Part e)
Answer:
1.9311 m/s
168.86792 N
Explanation:
v = Final velocity
m = Mass of truck =
s = Displacement = 26.5 m
Work done is given by
The speed is 1.9311 m/s
Work done is given by
The horizontal force is 168.86792 N