Two warehouse employees need to move a 100kg box. It is too heavy to pick up so they decide to slide it along the ground. The employees push with a force of 300N. Sliding friction resists their motion wit 100N of force. What is the acceleration of the box?
a. 1m/s squared
b. 2m/s squared
c. 3m/s squared
d. 4m/s squared
plz explain how u figure it out
2007-01-14 05:08:52 · 6 answers · asked by rockergrl202 3 in Science & Mathematics ➔ Physics
All the forces acting on the body should balance.
The Acceleration of the body is due to the difference between the applied force and the frictional force
m*a = F- f
m = 100 kg
a = ?? m/s²
f = 100 N
F = 300N
m*a = 200 N
a = 2 m/s²
ANSWER IS OPTION B
2007-01-14 05:12:48 · answer #1 · answered by Som™ 6 · 1⤊ 0⤋
The answer is b.
The employees are pushing at 300N, but a resisting force is at 100N, making a resultant force in the direction of movement to be 300N-100N=200N. Basic equation of F=ma, where the force pushing forward (the resultant force) is 200N and the mass of the box is 100kg. Solving, you get 2m/s^2.
2007-01-14 05:19:07 · answer #2 · answered by David 3 · 0⤊ 2⤋
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2016-10-17 01:21:29 · answer #3 · answered by Anonymous · 0⤊ 0⤋
They are pushing the box with an effective force of 200N. (300N - 100N friction). F=ma, so 200N=100kg(x m/s^2). Try to do the rest yourself.
2007-01-14 05:14:24 · answer #4 · answered by Iconoclast 2 · 1⤊ 2⤋
b
2007-01-14 05:11:25 · answer #5 · answered by Lauren 3 · 1⤊ 2⤋
b.2m/s squared.
2007-01-14 05:15:53 · answer #6 · answered by tota 1 · 0⤊ 2⤋