Answer:
The angular velocity is 15.37 rad/s
Solution:
As per the question:
Horizontal distance, x = 30.1 m
Distance of the ball from the rotation axis is its radius, R = 1.15 m
Now,
To calculate the angular velocity:
Linear velocity, v =
v =
v =
v =
Now,
The angular velocity can be calculated as:
Thus
By velocity vectors (arrow)
It depends when you look at a pichture it could possibly help.
Answer:
option (c).
Explanation:
A thermodynamical system is the system in which the system is closed and the volume is constant.
Here, the glass container which is sealed is the best example of thermodynamical closed system.
Answer:
Explanation:
When the cup slides, the car acceleration would be equal to the acceleration caused by the friction of the roof on the cup, which generated by normal force, which equals to gravity force on the cup.
So the equation of friction force is as the following:
where m is the mass of the cup, g = 9.81 m/s2 is the gravitational acceleration, and is the friction coefficient
Newton's 2nd law for when the cup slides