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finlep [7]
2 years ago
10

What would land with more force, a feather moving at a certain acceleration, or a football moving with the same acceleration?

Physics
1 answer:
Jlenok [28]2 years ago
4 0

Answer:

the ball ofc

Explanation:

the ball have a greater mass then the feather and it have the same speed as the feather

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Which is true of Pluto?
steposvetlana [31]

Answer:d

Explanation:

Probably becuase it is further than Saturn

It takes like 70 years to go around the sun

And it is bigger than the moon

8 0
2 years ago
Does a perfectly elastic colission conserve momentum and impulse
Degger [83]

Answer:

A perfectly elastic collision conserves momentum and kinetic energy..

5 0
3 years ago
Why do u think you usually can't feel or notice the movement of the continents
luda_lava [24]
You can usaly not feal it because the earth is moving and the plates aren't having any major change to the movement.
7 0
3 years ago
At a busy intersection, a 1320-kg car traveling west with a speed of 12 m/s collides head-on with a minivan traveling east with
Elza [17]
p = mv so this question pertains to conservation of momentum.

The momentum of the car is 1320*12 = 15840kgms^-1
For the sake of easiness and the fact negatives are annoying, I will assume east to be positive.

So we know 9.4m - 15840 = (1320+m)*1.5
9.4m - 15840 = 1980+1.5m

Rearranging to solve for m
7.9m = 17820
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7 0
3 years ago
a 20 kg box is at rest on a level floor. the coefficient of static friction between the box and the floor is 0.35. hillary pushe
Yakvenalex [24]

Answer:

f = 50\,N

Explanation:

Let assume that floor is horizontal. By definition, the force of friction is less or equal to the maximum static friction force. That is to say:

f \leq \mu_{s}\cdot m \cdot g

The maximum friction force is:

f_{max} = 0.35\cdot (20\,kg)\cdot (9.807\,\frac{m}{s^{2}} )

f_{max} = 68.67\,N

By applying Newton's law, the box has the following physical model:

\Sigma F = F - f = 0

Where:

f = F

Real friction is equal to 50 N, which is less than maximum friction force. Therefore, the static friction on the box is:

f = 50\,N

7 0
3 years ago
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