Answer:
The value is 
Explanation:
From the question we are told that
The weight of the horizontal solid disk is 
The radius of the horizontal solid disk is 
The force applied by the child is 
The time considered is 
Generally the mass of the horizontal solid disk is mathematically represented as
=> 
=> 
Generally the moment of inertia of the horizontal solid disk is mathematically represented as
=> 
=> 
Generally the net torque experienced by the horizontal solid disk is mathematically represented as
=> 
=> 
=> 
Gnerally from kinematic equation we have that
Here 
is the initial angular velocity velocity of the horizontal solid disk which is 
So
=> 
Generally the kinetic energy is mathematically represented as
=> 
=>
This link should help you out https://quizlet.com/40330134/biomechanics-questions-flash-cards/
The angle of prism is 41.81 degrees.
<u>Explanation:</u>
For no emergence to be taken place, inside a prism, Total Internal Reflection (TIR) should take place at the second surface. For TIR, at second surface, angle of refraction must be greater than critical angle. Angle of prism is related to refraction as,
Since, 
= C and 
This implies 
when sin goes to other side become as sin inverse of value, and obtain the result as below,
i think the data is not complete but that's according to me
<span>d.rotating counterclockwise and slowing down
This is a matter of understanding the notation and conventions of angular rotations. Positive rotations are counter clockwise and negative rotations are clockwise. An easy way to remember this is the "right hand rule". Make a closed fist with your right hand and have the thumb sticking outwards. If you orient your thumb such that it's pointing in the direction of the positive value along the axis, your fingers will be curled in the positive rotational direction. So in the described scenario, the sphere is rotating in the positive direction (counter clockwise) and decelerating due to the negative angular acceleration. That immediately indicates that options "a", "b", and "e" are wrong since they mention the sphere going clockwise at the beginning. Of the two remaining options "c" and "d", we can discard option "c" since it has the rotation speeding up, and that leaves us with option "d" where the sphere is rotating counter clockwise and slowing down.</span>
