The 2 requirements for glue to work are adhesion and cohesion
Answer:
24.07415 rpm
Explanation:
= Coefficient of friction = 0.63
v = Velocity
d = Diameter = 4.9 m
r = Radius =
m = Mass
g = Acceleration due to gravity = 9.81 m/s²
Here the frictional force balances the rider's weight
The centripetal force balances the weight of the person
Velocity is given by
Converting to rpm
The minimum angular speed for which the ride is safe is 24.07415 rpm
Answer:
20x120=2400m equivalent to 2km
15x120 =1800 m = 1.8km
2km +1.8 km = 3.8 km
Answer: true
They vary from element to element