A 20N horizontal force is applied to a 4.0 kg box. The box moves a horizontal distance of 3.0 meters. The work done by the 20 N force is?
could someone please help me out, thank you so much!
2007-03-09 04:05:15 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Work is just force applied over a distance
so all you would have to do is use the formula W=Fd
W=20N*3.0m
W=60Joules
2007-03-09 04:15:34 · answer #1 · answered by NASA 2 · 0⤊ 0⤋
I thought you were going to answer how long it takes to move the box 3 meters, or what is the rate of acceleration, or what is the final velocity.
But the amount of work done is simple.
Work = Force x distance
In this case, the work is 20 N x 3 m = 60 Newton-meters
= 60 Joules.
2007-03-09 12:14:58 · answer #2 · answered by actuator 5 · 0⤊ 0⤋
work = force x distance moved (in directio of force)
work = 20 x 3 = 60J
(since box remains horizontal, no work is done against gravity. So the box's mass is irrelevant)
2007-03-09 12:39:07 · answer #3 · answered by alexsopos 2 · 0⤊ 0⤋
The work is just found by multiplying the distance by force if the force is constant and in the dirrection of the movement.
So the answer is 60j !
2007-03-09 12:46:51 · answer #4 · answered by mojtaba 1 · 0⤊ 0⤋
Work equals force times distance.
2007-03-09 12:09:58 · answer #5 · answered by Brian L 7 · 0⤊ 0⤋