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sweet [91]
3 years ago
13

Calculate the acceleration of Josh riding his bicycle in a straight line that speeds up from 4 m/s to 6 m/s in 5 seconds

Physics
2 answers:
Anton [14]3 years ago
8 0

Answer:

a=0.4m/s^2

Explanation:

The formula for calculating acceleration is as follows:

a=\frac{v_{f}-v_{i}}{t}

where v_{f} is the final velocity, v_{i} the initial velocity, an t is the time in wich the velocity changed.

For this case:

v_{f}=6m/s

v_{i}=4m/s

t=5s

Thus the acceleration is:

a=\frac{6m/s-4m/s}{5s}

a=\frac{2m/s}{5s}

a=0.4m/s^2

The acceleration of Josh is: a=0.4m/s^2

Varvara68 [4.7K]3 years ago
3 0

Answer:

U=4m/s

V=6m/s

T=5s

Acceleration =v-u/t

6-4/5

=2/5 metre/second(square).

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Answer:

I'm taking a wild guess at c

Explanation:

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3 years ago
Chicago Bears rookie running back Tarik Cohen stands 5 feet and 6 inches tall, which is 66 total inches. How many meters tall is
Sholpan [36]

1.6764 meters. You can also google inches to meters for your answer.

5 0
3 years ago
Part A Determine the absolute pressure on the bottom of a swimming pool 30.0 m by 8.7 m whose uniform depth is 1.8 m . Express y
Sphinxa [80]

Answer:

17.66 kPa

Explanation:

The volume of water in the swimming pool is the product of its dimensions

V = 30 * 8.7 * 1.8 = 469.8 cubic meters

Let water density \rho = 1000 kg/m^3, and g = 9.81 m/s2 we can calculate the total weight of water in the swimming pool

W = mg = \rho V g = 1000 * 469.8 * 9.81 = 4608738 N

The area of the bottom

A = 30 * 8.7 = 261 square meters

Therefore the pressure is its force over unit area

P = F/A = 4608738  / 261 = 17658 N/m^2 or 17.66 kPa

7 0
3 years ago
A converging lens can be defined as __________
Kobotan [32]

Answer:

a lens that causes parallel light rays to separate from each other

3 0
3 years ago
Question is down below need rply fast
My name is Ann [436]

The X and Y components are as follows;

1. X = 35 * cos 57 = 19. 1m/s; Y = 35 * sin 57 = 29.4 m/s

2. X = 12 * -cos 34  = -10 m/s; Y = 12 * -sin 34 = -6.7 m/s

3. X = 8 * -cos 90  = 0 m/s; Y = 12 -sin 90 = -8 m/s

4. X = 20 * cos 75 = 5. 2m/s; Y = 20 * (-sin 75) =  -19.3 m/s

<h3>What are the horizontal and vertical components of the vectors?</h3>

The horizontal and vertical components of the velocities are given as follows:

  • Horizontal component, X = x cos θ
  • Vertical component, Y = y sin θ

1. 35 m/s at  57° from x-axis

X = 35 * cos 57 = 19. 1m/s

Y = 35 * sin 57 = 29.4 m/s

2. 12m/s at 34° S of W

X = 12 * -cos 34  = -10 m/s

Y = 12 * -sin 34 = -6.7 m/s

3. 8 m/s at South

X = 8 * -cos 90  = 0 m/s

Y = 12 -sin 90 = -8 m/s

4. 20 m/s at  275° from x-axis

X = 20 * cos 75 = 5. 2m/s

Y = 20 * (-sin 75) =  -19.3 m/s

In conclusion, the X and Y components are found by taking cosines and sine of the angles.

Learn more about horizontal and vertical components at: brainly.com/question/26446720

#SPJ1

8 0
2 years ago
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