Find minimum stopping distance if car has initialspeed

Assignment Help Physics

Reference no: EM13655206

a) Find the maximum rate of deceleration of a car on a dry, levelroad, assuming the coefficient of static friction between tires and pavement equals 1.4.

b) Find the minimum stopping distance if the car has an initialspeed of 25.3 m/s.

c) Repeat parts (a) and (b) assuming a wet, oily surface for whichμs = 0.09.

maximum rate of acceleration m/s²
minimum stopping distance m

Reference no: EM13655206

Questions Cloud

When the ball bounces back toward you what is its speed : A charging bull elephant with a mass of 5240-kg comes directly toward you with a speed of 4.55m/s. You toss a 0.150-kg rubber ball at the elephant with a speed of 7.81m/s (a) When the ball bounces back toward you, what is its speed ?

Horizontal spring that is at its equilibrium lenght : A 0.430-kg block is attached to a horizontal spring that is at its equilibrium lenght , and whose force constant is 20.0N/m. The block rests on a frictionless surface. A 0.0500-kg wad of putty is thrown horizontally at the block, hitting it with ..

Cockroach of mass m lies on the rim of a uniform disk : A cockroach of mass m lies on the rim of a uniform disk of mass4.0m that can rotate freely about its center like a merry-go-round.Initially the cockroach and disk rotate together with an angularvelocity of .260 rad/s.

What is their mutualinductance : Two coils are at fixed locations. When coil 1 has no current andthe current in coil 2 increases at the rate 15.4 A/s, the emf incoil 1 is 27.0 mV. (a) What is their mutualinductance (in mH)? (b) When coil 2 has no currentand coil 1 has a current of 6..

Find minimum stopping distance if car has initialspeed : Find the maximum rate of deceleration of a car on a dry, levelroad, assuming the coefficient of static friction between tires and pavement equals 1.4. Find the minimum stopping distance if the car has an initialspeed of 25.3 m/s.

Energy density of the magnetic field inside the solenoid : A solenoid that is 103 cm long has a cross-sectional area of17.5 cm2. There are 790 turns of wire carrying a currentof 9.15 A. (a) Calculate the energy density of the magnetic field inside the solenoid.

Find the resistance r inthe circuit : The current in an RL circuit drops from 0.80 A to 13 mAin the first second following removal of the battery from thecircuit. If L is 12 H, find the resistance R inthe circuit.

Instant the current and self-induced emf : At a given instant the current and self-induced emf in an inductorare directed as indicated in the figure 30-63. The induced emf is23 V and the rate of change of the current is 24 kA/s; find the inductance in henrys.

Outside of a neutralsphere of linear dielectric with radius : What are the bound charge densities inside and outside of a neutralsphere of linear dielectric with radius R with permittivityε1 placed in an infinite neutral linear dielectricfluid with permittivity ε2?

User Account

All Pages