Question

If a metal ball suspended by a rod is at rest, which force is responsible for balancing the force due to gravity?

Answer 1

the tension in the rod balance the force of gravity..

Answer 2

thank you :)

Answer 3

do you know this one by any chance, A force of 15 newtons is applied to both Object A with a mass of 25 kilograms and Object B with a mass of 50 kilograms. What is true about the acceleration of Object A and Object B?

Answer 4

force =mass*acceleration
or....acceleration = force / mass
force is same in two cases..
mass of B is greater than that of A...
so the acceleration of A is greater than that of B...

Answer 5

is the acceleration of a
greater by four times,
half the acceleration of b,
the same as accelertaion b,
or twice the acceleration of b?
do you know:o

Answer 6

acceleration of A=15/25 m/s^2
acceleration of B=15/50 m/s^2
that means acceleration of A is twice the acceleration of B

Answer 7

omg, your freaking smart! (:

Answer 8

do you got the answer?

Answer 9

yeah..

Answer 10

lets test yor knowledge, do you know this one? In which direction does a bag at rest move when a force of 20 newtons is applied from the right?

Answer 11

it will move in the left direction...is not it?

Answer 12

i put int the direction opposite of the directionn of the applied force but that waas wrong..

Answer 13

the answer choices where,
in the direction of the applied force
in the direction opposite of the directionn of the applied force
perpendicular to the direction of the applied force
or in a circular motion?

Answer 14

in the direction of the applied force

Answer 15

when i retake the test ill put that answer let see if its right..

Answer 16

is it?

Answer 17

i have to wait for a while until the tecaheer unlocks the test cause i failed it..

Answer 18

Lets do the next questions, look Which statement is true according to Newton's first law of motion?

Answer 19

bring it on...

Answer 20

haha alright! ignore the top question, lets go for this next one.
A car is moving at a constant speed along a straight line. Which statement is true about the forces acting on the car?

Answer 21

a) the net force acting on the car from alll directions is zero.
b) the net force acting on the car is graeter than the cars weight
c) the net force acting on the car is in the direction of the cars motion
d) the net force acting on the car is in the opposite of the cars motion

Answer 22

its a

Answer 23

Ahh you know it, it was A..

Answer 24

:)

Answer 25

An object of mass 5 kilograms is moving across a surface in a straight line with a speed of 3.5 meters/second. What amount of force would be required to keep the object in motion if you ignore the surface friction?

Answer 26

if there is no friction...no force is needed..

Answer 27

My answer choices are
0 newtons,
17.5 newtons,
3.5 newtons or 5 newtons! So your saying 0 newtons right?

Answer 28

yes

Answer 29

thank YOUUUUUUUU!

Answer 30

what are u doing?

Answer 31

this tests online.. -.- and yhou?

Answer 32

A car weighing 10,000 newtons is parked in a garage. Which statement is true about the forces acting on the car?

Answer 33

a) the net force acting on the car from all directions is zero.
b) the normal force acting on the car is less than the weigh's of the car
c) the net force acting on the car is from the right of the car
d) the normal force acting on the car is more than the weigh's of the car

Answer 34

a

Answer 35

YES!
When a net force of 17.0 newtons is applied to a dictionary placed on a frictionless table, it accelerates by 3.75 meters/secondÆ. What is the mass of the book?

Answer 36

*3.75 meters/second^2

Answer 37

mass=force/acceleration
calculate it ...

Answer 38

Got it! With what magnitude of force does a ball of mass 0.75 kilograms need to be hit so that it accelerates at the rate of 25 meters/ secondÆ? Assume that the ball undergoes motion along a straight line.
do i dot the samething here?

Answer 39

F=ma
close this question put a new post

Answer 40

tension in the rod