Solving 2kg Fan-Cart Motion: Acceleration, Velocity & Displacement

AI Thread Summary
The discussion focuses on calculating the motion parameters of a 2 kg fan-cart subjected to a 4 N forward force and 1 N frictional force. Using Newton's second law, the net force is determined to be 3 N, resulting in an acceleration of 1.5 m/s². The velocity at 3 seconds is calculated to be 4.5 m/s, while at 5 seconds, it reaches 7.5 m/s. The displacement between 3 and 5 seconds is found to be 11.5 meters, and the total displacement from 0 to 5 seconds is 18.75 meters. The average velocity during the interval between 3 and 5 seconds is then computed based on the displacement results.
jammhawk
Messages
17
Reaction score
0

Homework Statement


A 2 kg fan-cart is in linear motion; it experiences 4 N forward force due to the fan.

Assume that the 2kg fan-cart rolls under fan's force, between the weels and track there is 1N frictional force.

1. its acceleration
2. its velocity 3 second after start
3. its velocity 5 second after start
4. its displacement between 3s and 5s
5. its displacement between 0s and 5s
6. its average velocity using the result of 4

Homework Equations





The Attempt at a Solution



Any HELP will be GREAT!
 
Physics news on Phys.org
You are going to have to show how you would apply Newton's 2nd law and the general kinematic motion equations.
 

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

Motion of an Object: Displacement & Average Velocity
Replies
8
Views
2K
Calculating Fan Force on a Cart: A Physics Problem Solution in 3.5 Seconds
Replies
8
Views
4K
Relation between Friction, Velocity, and Acceleration
Replies
16
Views
935
What is the speed of the cart 3.5 s after the fan is on?
Replies
9
Views
3K
Force and distance/velocity/acceleration
Replies
16
Views
4K
Coefficient of Friction question for a cart going down a wooden ramp
Replies
18
Views
3K
Resistance force changing the velocity of an object
Replies
8
Views
1K
Impulse and Momentum: Ball and cart connected by a cord
Replies
24
Views
3K
What is the maximum displacement of the wagon during the motion of the bead?
Replies
15
Views
2K
Find the height of a lamp based on the velocities of projectiles
Replies
40
Views
2K

Hot Threads

Recent Insights

Back
Top