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2 years ago

Am object of ma 4 i thrown vertically upward from level ground with initial peed of 20. How high did the object go

Physics

1 answer:

denis23 [38]2 years ago

8 0

The maximum height of the object when thrown at the speed of 20 m/s is 20 m.

What is speed?

Speed is the magnitude of the rate of change of the position of any object with time which is a scalar quantity. It is the ratio of speed by time with the unit m/s or cm/s.

The height this object can travel with initial speed of 20 m/s can be calculated as,

where v is the final velocity, u is the initial velocity a is the acceleration due to gravity s is height.

0 = 20^2 + 2 (-10) s

s = 400 / 20 = 20 m

Therefore, the maximum height the object can travel with initial speed of 20 m/s is 20m.

To learn more about the speed click on the given link brainly.com/question/13943409

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Answer

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mass of the other object = 5.98 x 10²⁴ Kg

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Near the surface of Earth an electric field points radially downward and has a magnitude of approximately 100 N/C. What charge (

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Answer:

$q=2.997\times 10^{-4}$ C

Sign-Negative

Explanation:

We are given that

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Acceleration= $0.19 ms^{-2}$ (Upward)

Mass of charge=3 g= $3\times 10^{-3}$ kg

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We have to find the magnitude and sign of charge would have to be placed on a penny .

By newton's second law

$\sum F_y=ma$

$\sum F_y=qE-mg$

Substitute the values then we get

$qE-mg=ma$

Substitute the values then we get

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