A pendulum swinging in a circular arc under the influence of gravity, as shown i

Question

A pendulum swinging in a circular arc under the influence of gravity, as shown in the figure, has both centripetal and tangential components of acceleration.

If the pendulum bob has a speed of 2.7m/s when the cord makes an angle of ? = 17? with the vertical, what are the magnitudes of the components at this time?

Where is the centripetal acceleration a maximum?

What is the value of the tangential acceleration at that location?

The blades of a fan running at low speed turn at 260rpm . When the fan is switched to high speed, the rotation rate increases uniformly to 360rpm in 5.70s.

What is the magnitude of the angular acceleration of the blades?

How many revolutions do the blades go through while the fan is accelerating?

Explanation / Answer

A)

given;
v = 2.7 m/s
? = 17

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