subject
Physics, 29.06.2019 14:00 ErikHabdlowich

Acar of 1000 kg with good tires on a dry road can decelerate (slow down) at a steady rate of about 5.0 m/s2 when braking. if a car is initially traveling at 20 m/s (45 mi/h), (a) how much time does it take the car to stop? (b) what is its stopping distance? (c) what is the deacceleration? (d) how big is the net force to be applied to stop this car? (e) calculate the work done by this force (work = force * distance). (f) during the stopping process, what happens to the car's kinetic energy?

ansver
Answers: 2

Other questions on the subject: Physics

image
Physics, 22.06.2019 04:10, brianamelara
Atotal charge of –6.50 µc is uniformly distributed within a sphere that has a radius of 0.150 m. what is the magnitude and direction of the electric field at 0.300 m from the surface of the sphere? a) 2.89 × 105 n/c, radially inward b) 6.49 × 105 n/c, radially outward c) 4.69 × 105 n/c, radially inward d) 9.38 × 105 n/c, radially outward e) 1.30 × 106 n/c, radially inward
Answers: 3
image
Physics, 22.06.2019 06:00, jagmeetcheema
The frequency of vibrations of a vibrating violin string is given by f = 1 2l t ρ where l is the length of the string, t is its tension, and ρ is its linear density.† (a) find the rate of change of the frequency with respect to the following. (i) the length (when t and ρ are constant) (ii) the tension (when l and ρ are constant) (iii) the linear density (when l and t are constant) (b) the pitch of a note (how high or low the note sounds) is determined by the frequency f. (the higher the frequency, the higher the pitch.) use the signs of the derivatives in part (a) to determine what happens to the pitch of a note for the following. (i) when the effective length of a string is decreased by placing a finger on the string so a shorter portion of the string vibrates df dl 0 and l is ⇒ f is ⇒ (ii) when the tension is increased by turning a tuning peg df dt 0 and t is ⇒ f is ⇒ (iii) when the linear density is increased by switching to another string df dρ 0 and ρ is ⇒ f is ⇒
Answers: 3
image
Physics, 22.06.2019 08:50, dijonmckenzie3
The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?
Answers: 2
image
Physics, 22.06.2019 09:30, lisnel
1. how to locate the image in converging(concave) mirror and diverging (convex) mirror with salt. 2. how to locate the image in a converging (convex) lens and diverging (concave) lens with salt.
Answers: 1
You know the right answer?
Acar of 1000 kg with good tires on a dry road can decelerate (slow down) at a steady rate of about 5...

Questions in other subjects: