physics help?

Question

A force of 100 N accelerates a mass of 1 kg at the rate of 1 meter per second squared. The acceleration of a mass of 2 kg acted upon by a force of 2 N is____________
a) with half as much
b) with 10 times as much
c) with 100 times as much force
d) with one tenth the amouth of force
e) none of the above

Answer 1

Did you copy the question right? Answers c and d don't make sense. The blank is asking about the acceleration, with the force given, but those answers give information about the force.

If I am reading it correctly. I think it's e.

If a force of 100 N acts on 1 kg to produce an acceleration of 1 m/s^2, then the 100 N is not the net force on the object. In the second part, given only a new mass and new force of 2 N, we cannot determine what the new acceleration is. There is another force opposing our applied force of 2 N, but we don't know what it is, so we cannot calculate the new acceleration.

I guess we can do a proportion of 100/0.5 = 2/a, and get 1/100 for the acceleration, but that would only work if the net unknown force is not dependent on the mass of the object.

P.S. The acceleration cannot be the same. Think about it. F=ma. If F is significantly less, then the ma part would have to be significantly less also. If m is more, then the a has to be less. Combining those, if F goes from 100 to 2, and m goes from 1 to 2, a would have to be significantly less.

Answer 2

i think it would be (e)

f=ma
100 N=1 kg * 1 m/s^2

2 N=2 kg*v
----------------
2kg

v=1 m/s^2

therefore, it was the same amount of force, not 100 times as much.

Answer 3

answer c i did this not with my phycic powers but w// my heads!!!














yea rite