How fast is the police car traveling

Assignment Help Physics
Reference no: EM13798247

1. A car is speeding at a constant 25 m/s (56 mi/h) in a school zone. A police car starts from rest just as the speeding car passes by it and accelerates at a constant rate of 5.0 m/s2.

(a) When does the police car catch the speeding car?

(b) How fast is the police car traveling when it catches up with the speeder?

2. An object is released from rest at a height h. During the final second of its fall, it travels a distance of 38 m. Determine h.

3. A rock is thrown with a velocity of 49 m/s upward from a point 15 m above the ground, calculate:

(a) When the rock reach its maximum height?

(b) The maximum height of the rock above the ground?

4. A tetherball of mass m is suspended from a length L of rope and travels at constant speed v in a horizontal circle of radius r. The rope makes an angle θ with the vertical. Find

2292_img4.png

(a) The direction of the acceleration,

 (b) The tension of the rope, and

(c) The speed of the ball.

5. A 20 kg box rests on a frictionless ramp with a 15° slope. The mover pulls on a rope attached to the box to pull it up the incline (see Figure). If the rope makes an angle of 40° with the horizontal, what is the smallest force F the mover will have to exert to move the box up the ramp?

2012_img5.png

6. From F = -kx for a spring, prove U = 1/2kx2.

7. Give an explanation for non-science students to understand why the curved exits and entrances of highway are always banked?

8. As shown in Figure, m1 = 4.0 kg, m2 = 5.0 kg, and the coefficient of kinetic friction between m1 and the inclined plane is 024. Find the magnitude of the acceleration of the masses and tension in the cord.

1114_img8.png

Reference no: EM13798247

Questions Cloud

Explain demand planning and resource planning strategies : Explain demand planning and resource planning strategies. Identify strategies and technologies to improve materials requirements and resource planning.
Economic system which uses biblical worldview : Is the perfectly competitive model a good benchmark for an economic system which uses Biblical worldview? Use Scriptural support where appropriate and also comment on the perfectly competitive model as a guide for public policy. What should be the ro..
Describe the characteristics of a population : describe the characteristics of a population.
Describe the business and its likely main competitors : Assume that you are going to start a small business of your own. Further, imagine that you are able to adequately differentiate your product, or service so that you can establish your business as a monopolistically competitive firm. Describe the busi..
How fast is the police car traveling : A car is speeding at a constant 25 m/s (56 mi/h) in a school zone. A police car starts from rest just as the speeding car passes by it and accelerates at a constant rate of 5.0 m/s2. How fast is the police car traveling when it catches up with the ..
Regulate the monopolist by imposing a price ceiling : Illustrates your local electricity company’s natural monopoly. The diagram shows the demand curve for kilowatt-hours (kWh) of electricity, the company’s marginal revenue (MR) curve, its marginal cost (MC) curve, and its average total cost (ATC) curve..
Describe the profit maximizing condition for a monopoly : Explain what monopolies are and Describe the profit maximizing condition for a monopoly.
Industry wide agreement concerning the extent of advertising : What is the payoff table? If the firms act independently what advertising level should each choose? Could the firms profit by entering into an industry wide agreement concerning the extent of advertising?
How video clip relates to the article om manifesto : how the video clip relates to the article " Om Manifesto" (i.e. how does The Secret support the main idea of Keri English's article?). Use at least two quotes from Keri English's article to support your answer.

Reviews

Write a Review

Physics Questions & Answers

  Find the magnitude of the resulting magnetic field

A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.

  Find the equivalent resistance

A resistor is in the shape of a cube, with each side of resistance  R . Find the equivalent resistance between any two of its adjacent corners.

  What is the electric field at the location

Question: Field and force with three charges? What is the electric field at the location of Q1, due to  Q 2 ?

  What is the maximum displacement of the bridge deck

What is the maximum displacement of the bridge deck?

  What is the magnitude of the current in the wire

What is the magnitude of the current in the wire as a function of time?

  Blackbody

Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.

  Gravity conveyor

Illustrate the cause of the components accelerating from rest down the conveyor.

  Calculate the dc voltage

Calculate the dc voltage applied to the circuit.

  Quadrupole moments in the shell model

Quadrupole moments in the shell model

  Determine the tension in each string

Determine the tension in each string

  Introductory mechanics: dynamics

Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.

  Evaluate maximum altitude

Evaluate maximum altitude?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd