A concept car includes a solid disk-shaped flywheel which can be spun up to store rotational kinetic energy. On demand, that stored energy can be converted into the car's translational kinetic energy. Suppose the flywheel has a mass of 339 kg, a radius of 0.3 m, and maximum rotational speed of 96 rev/s. Calculate the 1,414-kg car's maximum speed (starting from) rest if all of its kinetic energy comes from the flywheel. [Tip: Be careful with units.] Vmax = m/s

A concept car includes a solid disk-shaped flywheel which can be spun up to store rotational kinetic energy. On demand, that stored energy can be converted into the car's translational kinetic energy. Suppose the flywheel has a mass of 339 kg, a radius of 0.3 m, and maximum rotational speed of 96 rev/s. Calculate the 1,414-kg car's maximum speed (starting from) rest if all of its kinetic energy comes from the flywheel. [Tip: Be careful with units.] Vmax = m/s

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: A torque of 170 N.m does 4715 J of work on a rotating flywheel. If the flywheels initial kinetic…

A: Given : τ = 170 N.m W = 4715 J Ki = 1320 J

Q: The puck in the figure below has a mass of 0.120 kg. The distance of the puck from the center of…

Q: (a) Calculate the force (in N) the woman in the figure below exerts to do a push-up at constant…

A: M=68kg

Q: The figure below shows a ball with mass m = 0.330 kg attached to the end of a thin rod with length L…

A: d) The required work done at lowest point is, Wlowest = mgl = (0.330)(9.8)(0.494 ) =…

Q: From the relationship between speed, torque, and power produced by an electric motor, determine the…

A: Solution:-Given thatPower produced by the electric motor (P)=200 HPRotatonal Speed (N)=3000 RPM

Q: A hula-hoop with a radius of 0.35 m is rotating at 15 radians per second. It weighs 1.7 kg. (A) How…

A: We know,v=rωwhere,v is linear velocityr is radius of hula hoopω is angular…

Q: A hoop has a mass of 315g and a radius of 2cm. It rolls, without sliding, along a level ground at…

Q: (a) Calculate the force (in N) the woman in the figure below exerts to do a push-up at constant…

A: Given data: Mass of the person (m) = 68 kg.Distance 1 (d1) = 0.85 m.Distance 2 (d2) = 1.42 m. To…

Q: length R = 5 m and swing down in a circular arc. R (a) Ignoring air friction, calculate your speed…

A: Given :- R = 5 m g = 9.8 m/s2

Q: 6) A Prony brake, shown in the figure, is a device that measures the horsepower of engines. The…

A: Radius of shaft: R Rate of rotation: N rev/sec Tension on the springs: T1 and T2

Q: The puck in the figure below has a mass of 0.120 kg. The distance of the puck from the center of…

A: The objective of the question is to determine the work done on the puck. This can be done by…

Q: A machine has a rod-shaped steel blade that rotates about its center. The mass of the blade is 0.70…

Q: Consider a 150g puck on a string moving in a 1m radius circle on an air hockey table (no friction)…

A: Solution:

Q: Suppose a 175 kg motorcycle is heading toward a hill at a speed of 34 m/s. The two wheels weigh 12…

A: The objective of the question is to find out how high the motorcycle can coast up the hill without…

Q: ニ,9% Figure 10.6 2.4Sin 30 -2.4m B 30 06m ne radius of a 3.0 kg wheel is 6.0 cm. The wheel is…

A: Mass=3kg Angle=30 Distance=6m

Q: A cylindrical disk and a ring, both of mass M and radius R, are placed atop an incline and allowed…

A: SOlution: given that A cylindrical disk and a ring, both of mass M and radius R,

Q: A regular baby swing with a length of 10m and a mass of 10kg, one end of which touches the ground…

A: Find the length of the baby swing from the axis of rotation to the point that touches the ground as…

Q: 9.0 kg 1.0 m 1.2 kg 2.0 m 2.5 kg

Q: The puck in the figure below has a mass of 0.120 kg. The distance of the puck from the center of…

Q: car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 1.00 m and…

Q: en has a moment of inertia of 0.040 kg m square and is rotating once every 4.0 sec. What is its…

A: Given:- Moment of inertia I = 0.040 kg m2 it rotates once every 4.0 sec. Find:- What is its…

Q: What is the kinetic energy of a 123 cm long thin uniform rod with a mass of 458 g that is rotating…

A: The rod is rotating about its center of mass so it has only rotational kinetic energy. Kinetic…

Q: A machine has a rod-shaped steel blade that rotates about its center. The mass of the blade is 0.50…

Q: The puck in the figure below has a mass of 0.140 kg. Its original distance from the center of…

A: Given Mass (m) = 0.140 kg Initial radius (ri)…

Q: Delivery trucks that operate by making use of energy stored in a rotating flywheel have been used in…

Q: A hollow sphere is released from rest at the top of the ramp at the height of 0.21 m. The hollow…

A: Given Data: Ramp height, ht=0.21 m Hollow sphere initial velocity, u=0 Bottom height, hb=0.05 m…

Q: How much mechanical energy is there in a 90.0 kg footballer whose center of gravity is 90.0 cm high…

A: Given Mass of football is m=90.0 kg Acceleration due to gravity is g=9.80 m/s2. Height is h=0.90 m…

Concept explainers

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.

Question

A concept car includes a solid disk-shaped flywheel which can be spun up to store
rotational kinetic energy. On demand, that stored energy can be converted into the
car's translational kinetic energy.
Suppose the flywheel has a mass of 339 kg, a radius of 0.3 m, and maximum
rotational speed of 96 rev/s. Calculate the 1,414-kg car's maximum speed (starting
from) rest if all of its kinetic energy comes from the flywheel.
[Tip: Be careful with units.]
Vmax
=
m/s

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Angular speed, acceleration and displacement

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Suppose a 175 kg motorcycle is heading toward a hill at a speed of 34 m/s. The two wheels weigh 12 kg each and are each annular rings with an inner radius of 0.280 m and an outer radius of 0.330 m. a) how high can it coast up the hill, if you neglect friction in m? b) how much energy is lost to friction if the motorcycle only gains an altitude of 39m before coming to rest?
a flat circular frisbee of mass 2.26 and radius .669 meters is thrown in such a way that the speed of its center is .838 m/s, and it rotates at 21.7 rotations per minute. the kinetic energy is
Mehul
The figure below shows a ball with mass m = 0.322 kg attached to the end of a thin rod with length L = 0.454 m and negligible mass. The other end of the rod is pivoted so that the ball can move in a vertical circle. The rod is held horizontally as shown and then given enough of a downward push to cause the ball to swing down and around and just reach the vertically up position, with zero speed there. (a) What initial speed must be given the ball so that it reaches the vertically upward position with zero speed? m/s (b) What then is its speed at the lowest point? m/s (c) What then is its speed at the point on the right level with the initial point? m/s
A Father spinning a child on a merry-go round , he exerts a Force of 140 N, at a distance of 1.4 m. And does this over 1.5 revolutions. What is the rotational work done?
Suppose you had a machine for 100% efficiently transferring kinetic energy of a rotating bicycle pedal to electrical energy. If the mass of a pedal is 200 g, (a) how fast must the pedal be moving to power a 17.00 W LED light? (b) what is the angular speed, in rpm, if the distance from the centre of the crank to the pedal is 16 cm?
A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 2.00 m and a mass of 400 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 4500 rev/min. (a) Find the kinetic energy stored in the flywheel. (b) If the flywheel is to supply energy to the car as would a 20.0-hp motor, find the length of time the car could run before the flywheel would have to be brought back up to speed.
A machine has a rod-shaped steel blade that rotates about its center. The mass of the blade is 0.75 kg and its length is 0.75 . Calculate its rotational kinetic energy when the blade has reached its operating speed of 4000 rpm.
The puck in the figure below has a mass of 0.260 kg. Its original distance from the center of rotation is 40.0 cm, and it moves with a speed of 90.0 cm/s. The string is pulled downward 15.0 cm through the hole in the frictionless table. Determine the work done on the puck. (Hint: Consider the change of kinetic energy of the puck.)
The figure shows a ball with mass m = 0.69 kg attached to the end of a thin rod with length L = 0.99 m and negligible mass. The other end of the rod is pivoted so that the ball can move in a vertical circle. (a) What initial speed must be given the ball so that it reaches the vertically upward position with zero speed? What then is its speed at (b) the lowest point and (c) the point on the right at which the ball is level with the initial point? (d) If the ball's mass were doubled, what would the answer to (a) be?
What is the gravitational potential energy in joules of the sphere where it starts from rest at the top of the ramp. what is the angular speed of the sphere at the foot of the ramp.
What is the kinetic energy of a 123 cm long thin uniform rod with a mass of 458 g that is rotating about its center at 4.0 rad/s? Give your answer in Joules.