Answer:
M v^2 / R = centripetal force
For Red: M v^2 / R = 5 * 9^2 / 1.5 = 270
For Blue M v^2 / R = 270 = 25 * 1.8^2 / Rb
So Rb = 25 * 1.8^2 / 270 = .3 m
Overload <<<<<<<<<<<<<<<<<<<<<<<<<<<<<,,,,,,,,
Answer:
The marble at its highest point are hmax= 1.39 meters above the floor.
Explanation:
hi= 1m
V= 3m/s
Vx= 1.1 m/s
Vy= ?
α=cos⁻¹(1.1/3)
α= 68.48º
Vy= V * sin(α)
Vy= 2.79 m/s
Vertical Velocity in highest point are Vy(hmax) = 0
Vy(hmax)= Vy - g*t
t= Vy/g
t= 0.28 sec
t : time to get the highest point
hmax= hi + Vy*t - g*t²/2
hmax= 1.39 m
30 because v1 - v2 is 30 v1 is 40 v2 is 10