4. The wheels on Devon’s bike have r-inch radii. After the front wheel picks up a tack, Devon rolls another d feet and stops. How far above the ground is the tack?Then,(Continuation) How many degrees does the wheel turn for each foot that it rolls?
A bike with a mass of 250kg. The wheels each have a diameter of 500mm. The wheel has 8 spokes with a mass of 0.25kg for each spoke. The bike accelerates from 5m/s to 25m/s over a distance of 200m in 20 seconds. Find the total work done by the bike. Calculate the amount of power developed during the ride. At another point in its journey, the bike travels at 80 km/h around a left-hand bend of radius 30m. Calculate:...
A cyclist starts from rest and pedals such that the wheels of his bike have a constant angular acceleration. After 14 s, the wheels have made 76 rev. A) What is the angular velocity of the wheels after 14 s in rad/s ? 68.2 rad/s B) If the radius of the wheel is 36 cm, and the wheel rolls without slipping, how far has the cyclist (in m) traveled in 14 s? ______rad/s^2 C) What is the angular acceleration of...
The diameter of a car's tire is 52 cm. While the car is being driven, the tire picks up a nail. How high above the ground will the nail be after the car has travelled 0.1 km? can someone please explain how to solve this question?
Aroad grader has 36" diameter wheels which are driven by a two-stage planetary gear train as shown below. All years have 20 teeth except for the fixed ring gear which has 60 teeth. If the road speed of the grader is to be 20 mph calculate the required rotational speeds of the output shaft and input shaft. Determine the overall input to output ratio. Input 20 mph Output Note, choose one or more than one of the following MC answers...
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REAL-WORLD APPLICATIONS 58. A truck with 32-inch diameter wheels is traveling at 59. A bicycle with 24-inch diameter wheels is traveling at 60 mi/h. Find the angular speed of the wheels in 15 mi/h. Find the angular speed of the wheels in rad/ rad/min. How many revolutions per minute do the min. How many revolutions per minute do the wheels wheels make? make? 60. A wheel of radius 8 inches is rotating 15°/s. What is 61. A wheel...
Aroad grader has 36" diameter wheels which are driven by a two-stage planetary gear train as shown below. All gears have 20 teeth except for the fixed ring gear which has 60 teeth. If the road speed of the grader is to be 20 mph, calculate the required rotational speeds of the output shaft and input shaft. Determine the overall input to output ratio. Input 20 mph Output Note, choose one or more than one of the following MC answers...
A road grader has 36" diameter wheels which are driven by a two-stage planetary gear train as shown below. All gears have 20 teeth except for the fixed ring gear which has 60 teeth. If the road speed of the grader is to be 20 mph, calculate the required rotational speeds of the output shaft and input shaft. Determine the overall input to output ratio. Input Output 20 mph Note, choose one or more than one of the following MC...
A bicycle wheel has four firecrackers attached to it on opposite ends of the wheel's diameter, as shown in the figure to the right. When the firecrackers are lit, they release heated gas away from their front ends. The bicycle wheel is pivoted against a wall by its center of mass and is free to spin. a. Which way will the bicycle wheel spin when the firecrackers are lit? Explain using the torque right hand rule. b. What is the...
maria's bicycle has a diameter of 64 cm. as she rides at the speed of 21.6 km/h, she picks up a stone in her tire. draw a graph that shows the stone's height above the ground as she continues to ride at this speed for 2 s more.can someone please help me find the period for this graph - how long it takes to complete one cycle? thanks!