Answer:
422.36 N
Explanation:
given,
time of rotation = 4.30 s
T = 4.30 s
Assuming the diameter of the ring equal to 16 m
radius, R = 8 m
v = 11.69 m/s
now, Force does the ring push on her at the top
N = 422.36 N
The force exerted by the ring to push her is equal to 422.36 N.
Answer:
Upward force on the boy will be 1024 N
Explanation:
We have given mass of the boy m = 80 kg
Acceleration due to gravity
It is given that elevator is ascending with acceleration of
So net acceleration on the boy = 9.8+3 = 12.8 ( As the car elevator is moving ascending )
So upward force on the boy will be equal to F = m(g+a)
So
So upward force on the boy will be 1024 N