Supporters for a certain presidential candidate held a bicycle caravan in a provincial town.One volunteer, weighing 75kg, is pedaling his new bike with wheels of radius 480mm. Inhis travel, the rear wheel rotated at 16 rad/s while pedaling at 9 rad/s. The chain connectsboth the front sprocket (propelled by the pedal) and the rear sprocket. If the frontsprocket is 80Omm in radius, what should be the required dianeter (in mm) of the rearsprocket?RearsprocketPedal crankFront sprocketChain

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Answered: Supporters for a certain presidential…

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As shown in the figure below, wheel A has a radius of 10 cm and is attached by a belt to to wheel C which has a radius of 25 cm. The angular speed of wheel A is increased from rest at a constant rate of 1.1 rad/s2(α). Determine the the time needed for wheel C to reach an angular speed of 100 rev/min assuming the belt does not slip. The linear velocity of the belt must be the same so αArA=αCrC. The relationship between angular acceleration and angular speed is ω=αt. 2pi rad = 1 rev. Don't forget to convert to consistent units.
The dung beetle is known as one of the strongest animals for its size, often forming balls of dung up to 10 times their own mass and rolling them to locations where they can be buried and stored as food. A typical dung ball formed by the species K. nigroaeneus has a radius of 1.95 cm and is rolled by the beetle at 6.10 cm/s. (a) What is the rolling ball's angular speed (in rad/s)? rad/s (b) How many full revolutions are required if the beetle rolls the ball a distance of 1.35 m?
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The dung beetle is known as one of the strongest animals for its size, often forming balls of dung up to 10 times their own mass and rolling them to locations where they can be buried and stored as food. A typical dung ball formed by the species K. nigroaeneus has a radius of 1.80 cm and is rolled by the beetle at 6.15 cm/s. HINT (a) What is the rolling ball's angular speed (in rad/s)? rad/s (b) How many full revolutions are required if the beetle rolls the ball a distance of 2.40 m? rev
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