Ask Question, Ask an Expert


Ask Physics Expert

problem 1: A curve of radius 120 m is banked at an angle of 18°. At what speed can it be negotiated beneath icy conditions where friction is negligible?

problem 2: The condition of apparent weightlessness can be made for a brief instant when a plane flies over the top of a vertical circle. At a speed of 215 m/s, then find out the radius of the vertical circle that the pilot should use?

problem 3: A motorcycle has a constant speed of 25.0 m/s as it passes over the top of a hill whose radius of curvature is 126 m. The mass of motorcycle and driver is 342 kg. Find out the magnitude of:

a) The centripetal force and
b) The normal force which acts on the cycle.

problem 4: A roller coaster consists of a dip that bottoms out in a vertical circle of radius r. Passengers feel the seat of the car pushing on them with a force equivalent to three times their weight as they go through the dip. If r = 20.0 m, how fast is the roller coaster car traveling at the bottom of the dip?

problem 5: A 2100 kg demolition ball swings at the end of a 15 m cable on the arc of a vertical circle. At lowest point of the swing, the ball is moving at a speed of 7.6 m/s. Find out the tension in the cable.

problem 6: An unbanked curve in the road has a radius of 75.0 m. The greatest speed a motorcycle can encompass without skidding around that curve is 25.0 m/s. The other curve has an identical surface however consists of a radius of 125 m. What is the maximum speed that the motorcycle can have around the second curve devoid of skidding?

Physics, Academics

  • Category:- Physics
  • Reference No.:- M92811

Have any Question? 

Related Questions in Physics

A using a calculator or computer sketch the graph of y 2ex

(a) Using a calculator or computer, sketch the graph of y = 2ex + 5e-x for -3 ≤ x ≤ 3, 0 ≤ y ≤ 20. Observe that it looks like the graph of y = cosh x. Approximately where is its minimum? (b) Show algebraically that y = 2 ...

With t in years the population of a herd of deer is

With t in years, the population of a herd of deer is represented by (a) How does this population vary with time? Graph P(t) for one year. (b) When in the year the population is a maximum? What is that maximum? Is there a ...

A classic example of a constrained channel with variable

A classic example of a constrained channel with variable symbol durations is the ‘Morse' channel, whose symbols are the constraints are that spaces may only be followed by dots and dashes. Find the capacity of this chann ...

Diodes and transistors are no longer useful when the

Diodes and transistors are no longer useful when the temperature is so high that the p/n junction built-in potential barrier height is less than about 4kT. Calculate the temperature for an Si p+/n abrupt junction diode w ...

A rocket of mass 10000 kg undergoes an acceleration of 2

A rocket of mass 10,000 kg undergoes an acceleration of 2 m/s 2 a) Find the force supplied by the rocket's engines. b) Find the rocket's speed two seconds after it leaves the ground. c) How high will it be in 5 secs unde ...

A kilogram weighs about 22 poundsa write a formula for the

A kilogram weighs about 2.2 pounds. (a) Write a formula for the function, f, which gives an object's mass in kilograms, k, as a function of its weight in pounds, p. (b) Find a formula for the inverse function of f. What ...

A rock of 350 kg is found at the top of a mountain that is

A rock of 350 kg is found at the top of a mountain that is 1250-m high. Find the potential energy with respect to the bottom of the mountain (g = 9.8 m/s2)

Questionyoure driving down a highway and you decide to

Question: You're driving down a highway, and you decide to accelerate flaunting the speed limit, you accelerate way up there. At one point, you're going (a) 100km/hr. Later, you're going (b) 0.25 times the speed of light ...

Double-slit experiment a suppose you illuminate the slits

Double-slit experiment. (a) Suppose you illuminate the slits with 589 nm yellow sodium light and observe a 4.5 cm bright-fringe spacing on a screen 1.75 m away. What's the slit spacing? (b) A double-slit system with slit ...

A if x3 y3 - xy2 5 find dydxb using your answer to part a

(a) If x 3 + y 3 - xy 2 = 5, find dy/dx. (b) Using your answer to part (a), make a table of approximate y-values of points on the curve near x = 1, y = 2. Include x = 0.96, 0.98, 1, 1.02, 1.04. (c) Find the y-value for x ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro