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ch4aika [34]
3 years ago
15

Sorin hits a cricket ball straight up into the air. After 1.5\,\text{s}1.5s1, point, 5, start text, s, end text, the ball is fal

ling straight down with a speed of 6.5\,\dfrac{\text{m}}{\text{s}}6.5
s
m
​
6, point, 5, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction. We want to find the initial vertical velocity of the ball. We can ignore air resistance.
Physics
1 answer:
Illusion [34]3 years ago
3 0

Answer:

8.2 m/s upward

Explanation:

The motion of the ball is a free fall motion, so we can use the suvat equation:

v=u+at

where:

v is the final velocity

u is the initial velocity

a is the acceleration

t is the time

Choosing upward as positive direction:

v=-6.5 m/s

a=g=-9.8 m/s^2 (acceleration of gravity)

t = 1.5 s

Solving for u, we find the initial velocity:

u=v-at=-6.5-(-9.8)(1.5)=8.2 m/s

And the direction is upward.

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2 years ago
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Marta_Voda [28]

Answer:

pplications of Pascal’s Law  

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3 years ago
As you ride a bicycle on the sidewalk with a speed of
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Answer:

1.2 seconds

Explanation:

distance = ((final speed + initial speed) * time)/2

Here given:

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  • final speed: 0 m/s

Solving steps:

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A lab technician needs to clean medical instruments that have been exposed to bacteria. Which electromagnetic wave
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