Question

This equation represents Newton's Second Law of Motion, F=ma. It shows the relationship of force, mass, and acceleration.

If the mass of an object is tripled, and the force acting on it is doubled, how will the object's acceleration be affected?

A.
Acceleration will be one-half the original value.

B.
Acceleration will be six times the original value.

C.
Acceleration will be two-thirds the original value.

D.
Acceleration will be two times the original value.

Answer 1

I think D.

Answer 2

@AlexandervonHumboldt2 @Awolflover1

Answer 3

uhmmmm

Answer 4

@imqwerty halp!

Answer 5

Already tried that lol

Answer 6

lol

Answer 7

he will come in a min he said hheeh

Answer 8

okay

now 1st lets say that the
Force is \(F_1\)
acceleration is \(a_1\)
mass is \(m_1\)

put these values into that formula and tell what u get

Answer 9

:/ a1 x m1 = F1 :/

Answer 10

yes correct
\(F_1=a_1m_1\)

now isolate \(a_1\)

Answer 11

If you plug in 350 for force, 75 for mass, 5 for acceleration and then do as told it would look like 700=225*3.111111111
2/3 of 5 is 3.333333
1/5 of 5 is 2.5.
Since 2/3 5 is closest, the answer would be B right? :?

Answer 12

*:/

Answer 13

your initial acceleration was 5
and your final acceleration is \(\large \frac{2}{3}~5\)

right?

Answer 14

Yah, if i did it right

Answer 15

yeah thats correct :)
so read the options and see which one looks alright

Answer 16

C?

I said B earlier

Answer 17

yes C is correct because its two-thirds of initial acceleration

but B is clearly wrong because B says that new acc will be 6 times of original
and original acc is 5
6 times of 5 is 30 which is way more than the new acc which we calculated

Answer 18

Thanks, can you check this one?

According to this equation, F=ma, how much force is needed to accelerate a 70-kg runner at 5m/s2?

A.
350 N

B.
350 m/s

C.
14 N

D.
14 m/s

Answer 19

I think it's D

Answer 20

no its not D

btw Force has this unit-> Newton (N)

and option D has other unit
so its clearly wrong

and just use this formula to get the answer-> \(F=ma\)

Answer 21

So it's C

Answer 22

no its not

Answer 23

how did u get C?

Answer 24

Never mind. :P I just calculated. 70 x 5 is 350 N

Answer 25

It's A.

Answer 26

yes :) its A

Answer 27

OMG!!! I got 7 people tagging me right now!!! I am trying my best not to Procrastinate lol.

Can you help with some more, @imqwerty?

Answer 28

lol but i hav to leave now x( i m here till i write my speech
so yeah i can help with a few more :)