Question

Newton's Second Law of Motion is expressed as F = ma.



A lawn mower with constant mass is pushed over a length of grass.



How much force is required to triple the acceleration rate?



A.
The force required is one-third the original force.


B.
The force required is three times the original force.


C.
The force required remains constant.


D.
The force required is four times the original.

Answer 1

From F=ma you can get a=F/m so if you want 3 times a :
\[3a=\frac{3F}{m}\]
you need to triple the force!

Answer 2

so the answer is B?

Answer 3

yes!

Answer 4

F=ma
a=F/m
3a = 3F/m
Triple force is required to triple the acceleration