How much work did the friction do in stopping the car

Assignment Help Physics
Reference no: EM13333375

A car is moving along a straight stretch of road at 60 mph [ 26.7 meters/sec ]. The driver makes slams on his breaks locking them so that the car skids to a stop. Assume a constant braking force due to friction, and a kinetic friction coefficient of 0.70 between the tires and the road:

(a) calculate the braking distance from the instant that the brakes were applied,

(b) how much work did the friction do in stopping the car?

Reference no: EM13333375

Questions Cloud

Determine the mole fraction of each species : Hexane (C6H14) burns with air (21 % O2, 79 % N2) in stoichiometric proportions. Also determine the mole fraction of each species in the product mixture
Calculate the acceleration of the system : Two boxes are connected by a cord running over a pulley as shown in Fig. 4-7. Box I of mass 8.0 kg rest on the top of the table; Calculate the acceleration of the system
Explain the ph of the resulting solution is 2.31 : Enough of a monproctic acid is dissolve in water to produce a 0.0147 M solution. The pH of the resulting solution is 2.31. Calculate the Ka for the acid.
How would each economist explain unemployment and what : How would each economist explain unemployment and what policies would each advocate?
How much work did the friction do in stopping the car : A car is moving along a straight stretch of road at 60 mph [ 26.7 meters/sec ]. how much work did the friction do in stopping the car
Define using chemical equations, show how the triprotic acid : Using chemical equations, show how the triprotic acid H3PO4 ionizes in water. Phases such as (l) or (aq) are optional Ka1 = ? Ka2 = ? Ka3 = ?
Write a prolog relation that returns a list : Write another relation (anything you want) that does something not performed above. Explain what your relation does.
Locate the final image relative to the lens on the right : Two converging lenses (f1 = 9.00 cm and f2 = 6.00 cm) are separated by 18.0 cm. The lens on the left has the longer focal length, Locate the final image relative to the lens on the right
Evaluate the hardness as ppm caco3 : A 250.0-mL sample of water was adjusted to pH 10 with ammonia buffer and calmagite indicator was added. The prepared sample required 30.84 mL of 0.00802 M EDTA for titration to the endpoint. Calculate the hardness as ppm CaCO3

Reviews

Write a Review

Physics Questions & Answers

  Find the minimum runway length

a jetliner is moving at a speed of 270 km/h. the plan then decelerates at 4.5 m/s2. what is the minimum runway length on which this aircraft can land

  Determine the net heat flow in or out of the system

2 moles of an ideal gas is allowed to expand from 0.002 m^3 to 0.02 m^3 while the pressure is held at 325000 pascals. Determine the net heat flow in or out of the system

  How long is the stone in the air

A stone is thrown outward from the top of a 59.4m high cliff with an upward velocity component of 19.5 m/s. How long is the stone in the air

  How much time passes before the players collide

Two soccer players start from rest, 47 m apart. They run directly toward each other, both players accelerating. How much time passes before the players collide

  Find the shapes electron and whole fermi surfaces

Consider two dimensional simple triangular lattice for free electron metal with two electrons per atom. Assume the lattice constant is a, find the areas electron and hole pockets that are formed in the second and first Brillouin zones respectively. F..

  How far will it travel before becoming airborne

How far will it travel before becoming airborne

  Determine the density of the proton

Determine the density of the proton.

  Determine the intensity of the light

Unpolarized light with intensity I0 is incident on two polarizing filters. The axis of the first filter makes an angle of ? = 60 ? with the vertical, What is the intensity of the light after it has passed through the second filter

  How many years it takes one electron to travel

A gauge-12 wire has diameter centimeters and length meters. while the voltage volts is applied to the ends of the wire, the current is amperes. The concentration of free electrons in the wire is per cubic meter.

  What is the acceleration of each sprinter

In a women's 100-m race, accelerating uniformly, Laura takes 2.00 s and Healan 3.00 s to attain their maximum speeds, What is the acceleration of each sprinter

  Illustrate what are the forces on each cable

Two meters from the left end is the 500 N washing equipment. Joe is 0.500 m from the right end and weighs 920 N. Given that the scaffold is in rotational and translational equilibrium, illustrate what are the forces on each cable?

  Calculate the magnitude of the girls acceleration

A 35.1 kg girl and a 58.4 kg boy are on the surface of a frozen lake, 14.5 m apart. Calculate the magnitude of the girl's acceleration

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