Answer:a) The linear speed of the rotating merry-go-round is 1.884 m/s.
b) The acceleration of the rotating merry-go-round device is .
Explanation:
a) linear speed of the device:
Distance =
Child seated 1.2 meters from the center, which means that radius ,r = 1.2 meters
Time taken to complete one revolution = 4.0 seconds
The linear speed of the rotating merry-go-round is 1.884 m/s.
b) Acceleration
Linear velocity ,v = 1.884 m/s
The acceleration of the rotating merry-go-round device is .
Answer:
The force of the weight
Explanation:
When we are lying on the bed, our weight is distributed along of our body and the equivalent of the force is given by the following expression.
w = m*g
where:
m = mass [kg]
g = gravity acceleration [m/s^2]
w = weight of the body [N]
At the moment when we are sleeping our body is at equilibrium, because the mattress is exerting a force with the same amount of the weight but in the opposite direction.
Uhh? Do you have any questions or need help?
Answer:
So, if the car slips in mud it will either skid or slide depending on the size of the mud puddle.
Does this work?