Question

The acceleration of an object varies directly with the force acting on it. If a force of 70 newtons (N) causes an acceleration of 6.5 m/s2, what force will cause an acceleration of 8 m/s2? Round your answer to the hundredths place.
(Points : 1)
0.74 N
0,743 N
86.15 N
86.158 N

Answer 1

i need to know how to do this step by step

Answer 2

force=mass x acceleration
70=6.5m
m=??

Answer 3

Thank you!! :) @acxbox22

Answer 4

did you get the problem?
we first find m which is about 10.769
then we plug that into the forumla
F=ma
F=(10.769)(8)
F=...

Answer 5

yes, so its 86.15

Answer 6

correct ;)

Answer 7

and you are welcome

Answer 8

yay!! thanks so much i have two more questions if your up for it

Answer 9

post away and tag me

Answer 10

the circumference of a circle varies directly with its radius. if the circumference of the circle with a radius of 1.5 inches is 9.42 in, what is the circumference of a circle with a radius of 9in? use (pi symbol) = 3.14. @acxbox22

Answer 11

you can just use the circumference formula for an easier way
C=2r(pi)
C=2(9)(3.14)

Answer 12

okay, so it would be 56.52 .?

Answer 13

yes :)

Answer 14

ok cool !! :) one more.. Paula's paycheck varies directly with the number of hours she works. If she earns $52.50 for 6h of work, how much will she earn for 11 h of work? round your answer to the nearest cent

Answer 15

@acxbox22

Answer 16

first divide 52.5 by 6 to find how much it costs for one hour
then multiply that by 11

Answer 17

so 8.75 would how much she'd get within one hour?

Answer 18

i got $96.25, is that right?

Answer 19

@acxbox22

Answer 20

seems right to me :)

Answer 21

okay thanks so much. i mean it. lol have a great day!! :)

Answer 22

@acxbox22