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Kazeer [188]
3 years ago
8

A 1.0 kg ball falling vertically hits a floor with a velocity of 3.0 m/s and bounces vertically up with a velocity of 2.0 m/s .

If the ball is in contact with the floor for 0.10 s, the average force on the floor by the ball is:
Physics
1 answer:
ale4655 [162]3 years ago
5 0

Answer:

50 N

Explanation:

given,

mass of ball = 1 Kg

initial velocity = 3 m/s

final velocity = 2 m/s

time = 0.10 s

impulse = change in momentum

I = m ( v - u)            

I = 1( 2 -(-3))                

I = 5 kg.m/s          

Force is equal to impulse per unit time

average force = \dfrac{I}{t}

                       = \dfrac{5}{0.1}

                       = 50 N

Average force on the floor will be equal to 50 N

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Answer:

F = 2389.603 N

Explanation:

Given:

Mass m = 1,369.4 kg

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Computation:

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a = (20 - 28.9)/5.1

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3 years ago
6.
S_A_V [24]

The distance in meters she would have moved before she begins to slow down is 11.25 m

<h3>LINEAR MOTION</h3>

A straight line movement is known as linear motion

Given that Ann is driving down a street at 15 m/s. Suddenly a child runs into the street. It takes Ann 0.75 seconds to react and apply the brakes.

To know how many meters will she have moved before she begins to slow down, we need to first list all the given parameters.

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  • time t = 0.75 s

From definition of speed,

speed = distance / time

Make distance the subject of the formula

distance = speed x time

distance = 15 x 0.75

distance = 11.25m

Therefore, the distance in meters she would have moved before she begins to slow down is 11.25 m

Learn more about Linear motion here: brainly.com/question/13665920

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How much would you have to eat for your appendix to explode ? I ate so much on thanksgiving and i need to know i’m very scared
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Answer:

I don't think your appendix can explode because you ate too much honestly. It's not even possible to eat so much that your appendix explodes, and if you're feeling any pain it definitely isn't because your appendix is about to explode, believe me. Also you could just type it into the internet, that'd be a much faster solution.

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E

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How is frame motion used to measure motion
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Answer:

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Explanation:

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