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satela [25.4K]
3 years ago
10

Is the expression "The bigger they are, the harder they fall" a generally true statement since, in the absence of air resistance

, all objects fall with the same acceleration due to gravity? Pick the most correct answer.
Yes, because as a heavier man falls, he comes closer to the center of the earth and he falls faster.
No, since the acceleration is the same, each man will be affected the same by it as he falls.
Yes, since F = ma, therefore "a" will be the same in each case, but the mass of each will be different.
Yes, since F = ma, the heavier an object is, the more it will accelerate and therefore fall with more force.
Physics
2 answers:
lions [1.4K]3 years ago
6 0
No, because in oxygen depraved rooms, if you drop a feather and a bowling ball at the same height and time, they will fall at the same speed and have the same amount of impact.
vaieri [72.5K]3 years ago
4 0

Answer:

No, since the acceleration is the same, each man will be affected the same by it as he falls.

Explanation:

In the problem, we are told that air resistance is gone. The reason a heavier man would fall harder is because the heavier a man, the less the air resistance would affect him. The air resistance is arguably the only factor that applies in what makes heavier men fall harder. So, if the aire resistance is gone and both mean are falling at exactly the same speed, then they will hit the ground equally as hard, making the correct answer B.

Hope this helps and makes sense.

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6 0
3 years ago
Read 2 more answers
Can some answer 7 a and b please
pav-90 [236]

Answer:

a.After 15 second Mr Comer's speed =  1.7 m/s

b.Distance travelled by Mr.Comer in 15 seconds  =   18.75\ m

Explanation:

a. Lets recall our first equation of motion V_{f} =V_{i} + at

Now we know that V_{i} = 0.8m/s , a = 0.06\ m/s^2 and

t = 15 \ sec

Plugging the values we have.

V_{f} =V_{i} + at

V_{f} =0.8 + 0.06 \times 15

V_{f} =0.8+ 0.9

V_{f} =1.7 m/s

Then Mr.Comer's speed after 15 sec = 1.7ms^-1

b.

Lets find the distance and recall our third equation of motion.

V_{f} ^2-V{i}^2 = 2as

So s = distance covered.

Dividing both sides with 2a we have.

\frac{V_{f} ^2-V{i}^2}{2a} = 2as

Plugging the values.

\frac{(1.7)^2-(0.8)^2}{2\times0.06} = 2as

s= 18.75\ m

So Mr.Comer will travel a distance of s= 18.75\ m.

4 0
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1. Delta, is formed by constructive erosion.
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The blades in a blender rotate at a rate of 6800 rpm . When the motor is turned off during operation, the blades slow to rest in
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2 years ago
What is the electric force acting between two charges of -0.0045 C and -0.0025 C that are 0.0060 m apart? Use Fe=kq1q2/r^2 and k
oksano4ka [1.4K]

Answer:

D. 2.8 × 10⁹ N

Explanation:

The force between two charges is directly proportional to the amount of charges at the two points and inversely proportional to the square of distance between the two points.

Fe= k Q₁Q₂/r²

Q₁= -0.0045 C

Q₂= -0.0025 C

r= 0.0060 m

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4 0
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Read 2 more answers
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