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1.Calculate the angular acceleration of the wheel alfa

I calculated the I=Mk^2

I= 14x0,15^2= 0,315kgm^2

Then angular acceleration from the formula above alfa= 0,2795 rad/s^2

Is that right?

2. calculate linear acceleration of the mass

3. velocity of the mass just before it hits the ground

4. angular velocity of the wheel just before the mass hits the ground.

Could anyone help mi with this? Thanks