Answer:
'acceleration will increase.'
Explanation:
We know that force on the rocket is given as follows
m=mass
v=velocity
t=time
F=force
F= m a
a=acceleration
If the mass m decreases then the acceleration of the rocket will increase.
Therefore we can say that if the mass m decreases then the acceleration a will increases to maintain the constant force F.
The answer will be 'acceleration will increase.'
Answer:
The minimum coefficient of friction is 0.666
Explanation:
Suppose, In a classic carnival ride, patrons stand against the wall in a cylindrical shaped room. Once the room gets spinning fast enough, the floor drops from the bottom of the room! Friction between the walls of the room and the people on the ride make them the “stick” to the wall so they do not slide down. In one ride, the radius of the cylindrical room is R = 7.6 m and the room spins with a frequency of 20.9 revolutions per minute.
Given that,
The normal force does not exceed 1.5 times each persons weight
We need to calculate the minimum coefficient of friction
Using balance equation
Where, N = normal force
Put the value into the formula
Hence, The minimum coefficient of friction is 0.666