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EleoNora [17]
3 years ago
7

A rock is pulled back in a slingshot as shown in the diagram below. The elastic on the slingshot is displaced 0.2 meters from it

s initial position. The rock is pulled back with a force of 10 newtons.
When the rock is released, what is its kinetic energy?
Physics
1 answer:
irakobra [83]3 years ago
4 0

Answer:

id

Explanation:

i don't know

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Calculate the speed of a car that travels 355km in 15 hours , a good answer please
Ludmilka [50]

Answer:

23.67 km / hr

Explanation:

car travels 355 km (d)

duration = 15 hrs  (t)

average speed formula = v = d / t

v = 355 km / 15 hr

v = 23.67 km / hr

8 0
3 years ago
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A car was driving at a speed of 10 m/s. In 3 seconds, it accelerated to a speed of 50 m/s. Calculate the car's acceleration.
Thepotemich [5.8K]

Answer:

\boxed {\boxed {\sf 13.3 \ m/s^2}}

Explanation:

Acceleration is the rate of change of velocity with respect to time. It is the change in velocity over the change in time, and it is calculated using the following formula.

a= \frac{ v_f-v_i}{t}

The car starts at a speed of 10 meters per second, then it accelerates to a speed of 50 meters per second. It achieves this acceleration in 3 seconds.

  • v_f= 50 m/s
  • v_i= 10 m/s
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Substitute the values into the formula.

a= \frac{50 \ m/s - 10 \ m/s}{3 \ s}

Solve the numerator.

  • 50 m/s -10 m/s= 40 m/s

a= \frac{40 \ m/s}{3 \ s}

Divide.

a= 13.3333333 \ m/s/s

a \approx 13.3 \ m/s^2

The car's acceleration is approximately <u>13.3 meters per second squared.</u>

6 0
3 years ago
If you are given force and distance you can determine power if you know
weeeeeb [17]
Yes, we can determine power if we know force and distance.
As power= Force x velocity
and velocity= distance/ time.
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3 years ago
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PLEASE HURRY AND HELP<br> What is the correct unit for acceleration?<br> A. m<br> B. m/s<br> C. m/s2
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The answer is C. m/s^2
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3 years ago
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