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lys-0071 [83]
3 years ago
15

Looking for: FBD, Proper given, proper required, state laws being used, starting equations, rearranged equation, unit analysis,

proper final answer A mother is pulling a sled at constant velocity by means of a rope at 37o . The tension on the rope is 120 N. Mass of children plus sled is 55 kg. The mother has a mass of 61 kg. a) Draw FBD for the sled with the kids as one object b) Draw FBD for the mother c) Find the normal force on the sled and on the mother d) Find the kinetic friction acting on the sled and the static friction acting on the mother e) Find the coefficient of kinetic friction for the sled
Physics
1 answer:
eduard3 years ago
8 0

Answer:

kjwjs sbsjsjjs hssjjdhd hdhd

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Need help before 10pm tomorrow night
konstantin123 [22]
The first one is A and the second one would be C
5 0
3 years ago
A thin spherical shell has a radius of 0.70 m. An applied torque of 860 N m gives the shell an angular acceleration of 4.70 rad/
Artyom0805 [142]

Answer:

I=182.97\ kg-m^2

Explanation:

Given that,

Radius of a spherical shell, r = 0.7 m

Torque acting on the shell, \tau=860\ N

Angular acceleration of the shell, \alpha =4.7\ m/s^2

We need to find the rotational inertia of the shell about the axis of rotation. The relation between the torque and the angular acceleration is given by :

\tau=I\alpha

I is the rotational inertia of the shell

I=\dfrac{\tau}{\alpha }\\\\I=\dfrac{860}{4.7}\\\\I=182.97\ kg-m^2

So, the rotational inertia of the shell is 182.97\ kg-m^2.

7 0
3 years ago
How does the balloon react to the cloth item?
almond37 [142]

Answer: When rubbing a balloon with a wool cloth, it puts negative charges on the balloon. Negative charges attract to positive charges. If a balloon is not rubbed with the wool cloth, it has an equal amount of negative to positive charges, so it will attract to a rubbed balloon.

8 0
3 years ago
Suppose that two objects attract each other with a gravitational force of 16 units. If the mass of both objects was doubled, and
Lady_Fox [76]

Answer:

  • Distance, such that displacement over time is taken into account doesn't change regardless of the length in x meters or mass in kg
  • So the force will remain constant given 16 units
6 0
2 years ago
What is the conclusion of coin and feather experiment? ​
valina [46]

Answer:

So the conclusion is that in presence of air net force acting downward reduces for feather and hence falls slower than coin. But in absence of air resistance, net downward force is just equal to force due to gravity which is same for both coin and feather and hence they fall down at the same rate.

5 0
3 years ago
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