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Maksim231197 [3]
4 years ago
14

PLEASE HELP AS FAT WILL GIVE BRAILIEST TO MOST SPECIFIC AND CORRECT ANSWER

Physics
1 answer:
Bas_tet [7]4 years ago
8 0

Answer:

Time

Explanation:

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A 66-kg base runner begins his slide into second base when he is moving at a speed of 3.4 m/s. The coefficient of friction betwe
Helen [10]

Answer:

a ) = 381.48 J

b )=  84.25 cm

Explanation:

Kinetic energy of the runner

= 1/2 m v²

= .5 x 66 x 3.4²

= 381.48 J

The final kinetic energy of the runner is zero .

Loss of mechanical energy

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This  loss in  mechanical energy is due to action of frictional force .

b )

Let s be the distance of slide

deceleration due to frictional force

= μmg/m

.7 x 66 x 9.8 / 66

a = - 6.86 m s⁻¹

v² = u² - 2 a s

0 = 3.4² - 2x6.86 s

s = 3.4² / 2x6.86

= .8425 m

84.25 cm

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3 years ago
Why does a hot air balloon fall when the air inside is not heated​
trapecia [35]
A hot air balloon rises in the first place because the air inside is hot, which rises. So, if the air inside is not heated, it fails to rise and falls. Warm air rises because the particles get excited and jiggle with the heat, and cause the air to take up more space. So, as the surrounding air is probably colder and denser, the less dense hot air rises up in the hot air balloon.
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4 years ago
During a free fall Swati was accelerating at -9.8m/s2. After 120 seconds how far did she travel? Use the formula =1/2 * t^2 to s
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Answer:

70560 m

Explanation:

The formula to calculate the distance travelled during a free fall motion is

d=-\frac{1}{2}gt^2

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t is the time

In this situation,

t = 120 s

Therefore the distance travelled after 120 s is

d=-\frac{1}{2}(-9.8)(120)^2=70560 m

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The answer is 25 ml for this question
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Which motion listed below matches the graph?
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Bro I really think it might be c
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