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A bicycle racer is going downhill at 12.2m/s when, to his horror, one of his 2.42kg wheels comes off when he is 75.0m above the foot of the hill. We can model the wheel as a thin-walled cylinder 85.0cm in diameter and neglect the small mass of the spokes.
A. How fast is the wheel moving when it reaches the foot of the hill if it rolled without slipping all the way down?
B. How much total kinetic energy does the wheel have when it reaches the bottom of the hill?
It is said that Galileo discovered a basic principle of the pendulum - that the period is independent of the amplitude - by using his pulse to time the period of swinging lamps, How long is the lamp chain
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What is kinetic energy of the shell
A person with a near point of 90 cm needs to read from a computer screen that is 40 cm from her eye. What is the power of the lenses
A rightward force of 15 N is applied 35 degrees above the horizontal to a 6 kg box to move it across a rough surface. Calculate the acceleration of the object
A 6.0 kg block of aluminum is heated from 20°C to 90°C at atmospheric pressure. Find the work done by the aluminum
A particle moving along the x axis in simple harmonic motion starts from its equilibrium position, the origin, at t = 0 and moves to the right. The amplitude of its motion is 1.70 cm and the frequency is 1.30 Hz.
when it is very far from the asteroid it will be traveling with speed 187 m/s. We have a large and powerful spring whose stiffness is 3.0 105 N/m. Explain how much must we compress the spring?
A police car is traveling east at 39.5 m/s along a straight road, overtaking a car ahead of it moving east at 32.0 m/s. What is the wavelength in front of the police car
An 9.00-cm-diameter, 330g solid sphere is released from rest at the top of a 1.70-m-long, 20.0? incline. What is the sphere's angular velocity at the bottom of the incline
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