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Radda [10]
3 years ago
9

What is the acceleration of a 50kg object that has been given a 20N push?

Physics
1 answer:
SCORPION-xisa [38]3 years ago
6 0
As long as the 20N force <em>keeps</em> pushing, its acceleration is 50/20 = 2.5 m/s² .

But as soon as the force <em>stops</em> pushing, the object stops accelerating.
It continues on from there at constant speed in a straight line.
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Respiratory system.

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A is a non-contact breaking of the basketball rules <br>​
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A ball is kicked from the top of a building with a velocity of 50 m/s and lands 165 m away from the base of the building.
Akimi4 [234]

Answer:

3.1 s

Explanation:

we can assume that this motion has a horizontal projectile motion.

projectile motion happens when  an object is subjected to only gravity. Gravity acts to influence the vertical motion of the projectile, it makes a  vertical acceleration.  

The horizontal motion of the projectile is the result of the constant velocity of the object.We assume no acceleration in the horizontal direction.  

applying motion equations

where

s - distance

u - initial velocity

a-acceleration

t - time

s = ut + (1/2)at²

→ 165 = 50t + 0 (as no acceleration is in horizontal direction)

t = 3.1 s

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3 years ago
occurs when a wave moves from one medium to another medium with diffrent properties. What is the word to this definition?
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The length of the ear canal is 2.5 cm and the speed of sound in air is 300 m/s. Which of the following is a reasonable estimate
yanalaym [24]

10,000 Hz is a reasonable estimate of a frequency that can be heard by the human ear.

<h3>What frequency heard by human ear?</h3>

Humans can detect sounds in a frequency range from about 20 Hz to 20000 Hz. Lower than 20 Hz and higher than 20000 Hz can't be heard by the human ear. We can say that 10000 Hz can be hear because it comes in this range

So we can conclude that 10,000 Hz is a reasonable estimate of a frequency that can be heard by the human ear.

So we can conclude that frequency here: brainly.com/question/254161

#SPJ1

4 0
2 years ago
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