What was the average force applied to the box in the direction of motion?

  • Thread starter Thread starter kooaznboi1088
  • Start date Start date
  • Tags Tags
    Kinetics Test
kooaznboi1088
Messages
10
Reaction score
0
A 7 kg box increases its speed form 2 to 4 m/s over a horizontal distance of 5 meters. coefficient fo kinetic friction is .1. what was the average force applied tothe box int he direction of the motion?
 
Physics news on Phys.org
Could you show some of your working or ideas?
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'Calculation of Tensile Forces in Piston-Type Water-Lifting Devices at Elevated Locations'

Thread 'Calculation of Tensile Forces in Piston-Type Water-Lifting Devices at Elevated Locations'

Figure 1 Overall Structure Diagram Figure 2: Top view of the piston when it is cylindrical A circular opening is created at a height of 5 meters above the water surface. Inside this opening is a sleeve-type piston with a cross-sectional area of 1 square meter. The piston is pulled to the right at a constant speed. The pulling force is（Figure 2）： F = ρshg = 1000 × 1 × 5 × 10 = 50,000 N. Figure 3: Modifying the structure to incorporate a fixed internal piston When I modify the piston...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Truck carrying a box, friction problem
Replies
10
Views
5K
Coefficient of kinetic friction of a block sliding across the ceiling
Replies
7
Views
1K
Box and a Spring on on an inclined plane
Replies
11
Views
3K
Box Pulled on Rough Horizontal Surface - Frictional Force
Replies
7
Views
9K
How Does Impulse Relate to Momentum Change in Physics Problems?
Replies
7
Views
2K
Momentum: instantaneous or average?
Replies
9
Views
1K
Static and kinetic friction help?
Replies
1
Views
1K
How do I find the the coefficient for kinetic friction given
Replies
7
Views
2K
Resistance force changing the velocity of an object
Replies
8
Views
1K
Static friction: Will the box move?
Replies
5
Views
2K

Hot Threads

Recent Insights

Back
Top