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andrey2020 [161]
3 years ago
7

Which form of energy increases when a spring is compressed?​

Physics
2 answers:
Soloha48 [4]3 years ago
6 0

Answer:

When the spring compresses, elastic potential energy increases.

Dmitriy789 [7]3 years ago
3 0

Answer:

the answer is b

Explanation:

elastic potential energy

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3 years ago
A net force of –8750N is used to stop of 1250.kg car travelling 25m/s. What braking distance is needed to bring the car to a hal
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Answer:

d = 44.64 m

Explanation:

Given that,

Net force acting on the car, F = -8750 N

The mass of the car, m = 1250 kg

Initial speed of the car, u = 25 m/s

Final speed, v = 0 (it stops)

The formula for the net force is :

F = ma

a is acceleration of the car

a=\dfrac{F}{m}\\\\a=\dfrac{-8750}{1250}\\\\a=-7\ m/s^2

Let d be the breaking distance. It can be calculated using third equation of motion as :

v^2-u^2=2ad\\\\d=\dfrac{v^2-u^2}{2a}\\\\d=\dfrac{0^2-(25)^2}{2\times (-7)}\\\\d=44.64\ m

So, the required distance covered by the car is 44.64 m.

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Pablo rode a skateboard up a ramp for a distance of 3.8 m. If the ideal mechanical advantage of the ramp is 2, how far above the
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The answer is 1.9 m

The ideal mechanical advantage (IMA) is the ratio of input distance (ID) to output distance (OD):
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