Question

What net force is required to push a sofa with a mass of
59 kilograms so that it accelerates at 9.75 meters/secondÆ?
(Assume a flat, frictionless surface.)

Answer 1

F=ma

Answer 2

thank you once again!

Answer 3

A normal force of 38 newtons acts on a book lying on a table. If the coefficient of static friction is 1.2, what is the minimum applied force required to slide the book?

Answer 4

\[F=\mu N\]
mu =coefficient of static friction
N=normal force

Answer 5

someone should give you an award for being so smart!

Answer 6

Tom and Ted are sitting on separate chairs that have wheels. Tom pushes Ted and, in turn, he starts moving too. In which direction does Tom move?

Answer 7

a) in the same direction
B)the opposite direction
c) perpendicular to the direction of ted
d)in a random direction

Answer 8

i think its b or c?:o what do you say?

Answer 9

b

Answer 10

Anna applies a force of 19.5 newtons to push a book placed on a table. If the normal force of the book is 51.7 newtons, what is the coefficient of kinetic friction?

Answer 11

i found it (:

Answer 12

\[F=\mu N\]
you know f and N..find mu...

Answer 13

If the distance between two objects is increased to four times the original distance, how will that increase change the force of attraction between the objects?

Answer 14

F is proportional to 1/r^2

Answer 15

my choices are
a) the new force will be one fourth of the orignal
b) the new force will be one sixteen of the orignal
c) the new force will be twice of the orginal
d) the new force will be eight times greater than the orignal

Answer 16

b

Answer 17

thank youuuuuu! hey do you want to keep on helping me still?(:

Answer 18

why dont you try it yourselves...if any problem..ask me....
close it now..:)

Answer 19

aww man! i suck at science but okay! thanks(: