The disk has a moment of inertia of 1/2 M R^2
and dw/dt = T /I but T = F* R so dw/dt = F*R/I = F*R/( 1/2 M R^2) = 2 F/(MR) Now v = wR so dv/dt = 2 F / M
For the individual to rush at g/4 then the force performing on the wheel must be 3mg/4 ( where m = 90 kg) so g/4 = 2 * 3mg / 4M 1 = 2*3 m / M M = 6 * 90 = 540kg
And tension must be 3/4 of the weight of the person = 3mg/4 = 405 N
If the boat is floating, then it's just sitting there, and not accelerating
up or down. That means the vertical forces on it must be balanced.
So if its weight (acting downward) is 100 newtons, then the buoyant
force on it (acting upward) must also be 100 newtons.
Answer:
A. Thickness and temperature
Explanation:
Answer:
ooh thanks but don't give me advise
Answer:
2ed law
Explanation:
i just looked it hope it helps