Answer:
The magnitude of the torque is 263.5 N.
Explanation:
Given that,
Applied force = 31 N
Distance from the axis = 8.5 m
She applies her force perpendicularly to a line drawn from the axis of rotation
So, The angle is 90°
We need to calculate the torque
Using formula of torque
Where, F = force
d = distance
Put the value into the formula
Hence, The magnitude of the torque is 263.5 N.
Kinetic Energy..........
Hope it helped u!
Answers:
a)
b)
Explanation:
a) Accoding to the Universal Law of Gravitation we have:
(1)
Where:
is the gravitational force between the eagle and the throng
is the Universal Gravitational constant
is the mass of the eagle
is the mass of the throng
is the distance between the throng and the eagle
(2)
(3) As we can see the gravitational force between the eagle and the throng is quite small.
b) The attraction force between the eagle and Earth is the weight of the eagle, which is given by:
(4)
Where is the acceleration due gravity on Earth
(5)
(6)
Now we can find the ratio between and :
As we can see this ratio is also quite small
Answer: 20m
Explanation:
Use equation
A=F*s
F=6000N
A=120000J
-----------------------------
s=A/F
s=120000J/6000N
s=20m