1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
BARSIC [14]
3 years ago
7

A car accelerates uniformly from rest to 60 km/h in 30 s. What is its displacement during this time?

Engineering
1 answer:
Rina8888 [55]3 years ago
5 0

Answer:

252.62 m

Explanation:

Data provided :

Initial speed of the car, u = 0 Km/h  (since, the car starts from the rest)

Final speed of the car, v = 60 km/h = 60 × (5/18) = 16.67 m/s

Time, t = 30 s

now,

from the Newton's equation of motion, we have

v = u + at

where,

a is the acceleration of the car

on substituting the values, we have

16.67 = 0 + a × 30

or

a = 0.55 m/s²

also,

v² - u² = 2as

where, s is the distance traveled

on substituting the values, we get

16.67² - 0² = 2 × 0.55 × s

or

s = 252.62 m

You might be interested in
1. A thin plate of a ceramic material with E = 225 GPa is loaded in tension, developing a stress of 450 MPa. Is the specimen lik
mina [271]

Answer:

fracture will occur as the value is less than E/10 (= 22.5)

Explanation:

If the maximum strength at tip Is greater than theoretical fracture strength value then fracture will occur and if the maximum strength is lower than theoretical fracture strength then no fracture will occur.

\sigma_m = 2\sigma_o [\frac{a}{\rho_t}]^{1/2}

=  2\times 750 (\frac{\frac{0.2mm}{2}}{0.001 mm}})^{1/2}

                 = 15 GPa

fracture will occur as the value is less than E/10 = 22.5

7 0
3 years ago
The following data were obtained when a cold-worked metal was annealed. (a) Estimate the recovery, recrystallization, and grain
Oduvanchick [21]
Sorrry needdddd pointssssss
7 0
2 years ago
Which of the following procedures best applies to assessing the embodied energy of a building?
galina1969 [7]

analyzing building materials???????????? but i can try i think it is analyzing the materials of the building

5 0
2 years ago
LINKS GET BODIED ON SITE! RAWR
bulgar [2K]

Answer:

False

Explanation:

MRK ME BRAINLIEST PLZZZZZZZZZZZZZZZZZZ

7 0
3 years ago
Consider a continuous-time LTI system whose frequency response is I x sin(4w) H(jw) = -x h(t)e-jwtdt = w If the input to this sy
Helga [31]

Answer:

I believe this is your question.

See the hand worked solution attached.

8 0
3 years ago
Other questions:
  • Water flows through a horizontal plastic pipe with a diameter of 0.15 m at a velocity of 15 cm/s. Determine the pressure drop pe
    11·1 answer
  • Answer?...................
    13·1 answer
  • Consider a very long, cylindrical fin. The temperature of the fin at the tip and base are 25 °C and 50 °C, respectively. The dia
    14·1 answer
  • The specific gravity of a fluid with a weight density of 31.2 lb/ft is a. 2.00 b. 0.969 c. 0.500 d. 1.03
    10·1 answer
  • Any help is appreciated.
    7·1 answer
  • How will the proposed study contribute to your career?*<br>(quantity Surveying​
    11·1 answer
  • An LED camping headlamp can run for 18 hours, powered by three AAA batteries. The batteries each have a capacity of 1000 mAh, an
    14·1 answer
  • Similarity of surface<br>and ground<br>waler​
    9·1 answer
  • No question but thx<br> reeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
    7·2 answers
  • A steel bar with a diameter of .875 inches and a length of 15.0 ft is axially loaded with a force of 21.6 kip. The modulus of el
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!