Answer:
Explanation:
Take sum of torques at the point the step touches the wheel, that eliminates two torques
Σ
Since we are looking for when the wheel just starts to rise up N-> 0 so no torque due to normal force
The perpendicular lever arm for the F force is R-h
And the T of gravity according to the image
Σ
D. Screw is the answer to your question
140 ? i’m guessing there doesn’t look like there’s much to the question
Friction force is equal to the applied force F until the block starts moving. Hence, it will increase until the maximum value of 3.0*10*0.50=150 N.
While it's moving, the friction will be 3.0*10*0.2 = 60 N, constant. The rest of the applied force will accelerate the block.
Answer:
0.186 N-m
Explanation:
mass of the grindstone,
radius,
Frequency,
time,
final angular velocity,
Initial angular velocity,
Angular acceleration of the grind stone is:
Moment of inertia:
Torque exerted by the ax on the grind stone is: