A steady horizontal force F if magnitude 21N is apllied at the axle of a solid disk. the disk has mass 2.0kg and diameter of 0.10m. What is the linear speed of the center of the disk after it has moved 12m?

Answer 1

Nick S. ? i got 15.87 m/s.... apparently the right answer is 9 m/s tho .
i assumed there's no torque.
v^2 = 2 ax. a = F / m.

Answer 2

B.K is an idiot

Answer 3

dont make of mrs keller shez da coolest, im tellin on u neil foglio and nick sun
peace

Answer 4

I wanted to use torque = torque

F*d = I*a

I= 1/2m*r^2
where a = v^2/r

F*d = (1/2 *m*r^2)(v^2/r)

still didn't get the answer its supposed to be B. 13 m/s