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
Ipatiy [6.2K]
3 years ago
8

Race car is accelerating and has a velocity of 10 m/s @ t=0. It completes a lap on a circular track of 400 m in 14 seconds. Calc

ulate the components and magnitude of acceleration after the car has travelled 200 m. Assume acceleration along track is constant.
Engineering
1 answer:
wariber [46]3 years ago
8 0

Answer:

component of acceleration are a = 3.37 m/s² and ar = 22.74 m/s²

magnitude of acceleration is  22.98 m/s²

Explanation:

given data

velocity = 10 m/s

initial time to = 0

distance s = 400 m

time t = 14 s

to find out

components and magnitude of acceleration after the car has travelled 200 m

solution

first we find the radius of circular track that is

we know  distance S = 2πR

400 = 2πR

R = 63.66 m

and tangential acceleration is

S = ut + 0.5 ×at²

here u is initial speed and t is time and S is distance

400 = 10 × 14  + 0.5 ×a (14)²

a = 3.37 m/s²

and here tangential acceleration is constant

so  velocity at distance 200 m

v² - u² = 2 a S

v² = 10² + 2 ( 3.37) 200

v = 38.05 m/s

so radial acceleration at distance 200 m

ar = \frac{v^2}{R}

ar = \frac{38.05^2}{63.66}

ar = 22.74 m/s²

so magnitude of total acceleration is

A = \sqrt{a^2 + ar^2}

A = \sqrt{3.37^2 + 22.74^2}

A = 22.98 m/s²

so magnitude of acceleration is  22.98 m/s²

You might be interested in
Gasoline has a comparatively high Btu per gallon rating of around
Shalnov [3]

Answer:

A

Explanation:

4 0
3 years ago
What is the potiental energy of a 3 kg ball that is on the ground
Llana [10]

Answer:

147.15

Explanation:

147.15 is the answer

8 0
2 years ago
A wood pole with a diameter of 10 in. has a moisture content of 5%. The fiber saturation point (FSP) for this wood is 30%. The w
Mekhanik [1.2K]

Answer:

a) Δd(change in wood diameter) = 5%

b) The wood would swell since the moisture content is increasing which will also led to increase in the wood's diameter

C) new diameter (D2) = 10.5 in

Explanation:

Wood pole diameter = 10 inches

moisture content = 5%

FSP = 30%

A) The percentage change in the wood's diameter

note : moisture fluctuations from 5% to 30% causes dimensional changes in the wood but above 30% up to 55% causes no change. hence this formula can be used to calculate percentage change in the wood's diameter

Δd/d = 1/5(30 - 5)

Δd/d = 5%  

Δd = 5%

B) would the wood swell or shrink

The wood would swell since the moisture content is increasing which will also led to increase in the wood's diameter

C) The new diameter of the wood

D2 = D + D( \frac{M1}{100} )

D = initial diameter= 10 in , M1 = initial moisture content = 5%

therefore D2 = 10 + 10( 5/100 )

new diameter (D2) = 10.5 in

5 0
3 years ago
- You have a bin wrench turning a 1/2 13 UNC bolt. You overcome 1200 lbs of resistance when you
andrew11 [14]

Fr

is my guess but yeah

6 0
3 years ago
LINKS GET BODIED ON SITE! RAWR
bulgar [2K]

Answer:

False

Explanation:

MRK ME BRAINLIEST PLZZZZZZZZZZZZZZZZZZ

7 0
3 years ago
Other questions:
  • Read two numbers from user input. Then, print the sum of those numbers. Hint -- Copy/paste the following code, then just type co
    14·1 answer
  • The liquid-phase reaction:
    12·1 answer
  • Create a C language program that can be used to construct any arbitrary Deterministic Finite Automaton corresponding to the FDA
    6·1 answer
  • Water evaporating from a pond does so as if it were diffusing across an air film 0.15 cm thick. The diffusion coefficient of wat
    8·1 answer
  • Please help will give brainliest please answer all 3
    11·1 answer
  • Why must air tanks be drained​
    15·1 answer
  • Answer back to question for la ,lot points
    10·1 answer
  • ________ are written to “maximize” or “minimize” a specific value associated with the product needs in order to define the goal
    9·2 answers
  • HELP ASSAPPP
    15·1 answer
  • Which material has the highest cp value?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!