How to Calculate Frictional Force on a Moving Cart?

AI Thread Summary
To calculate the frictional force on a 75 kg cart with a push of 220N resulting in an acceleration of 2.0 m/s², first determine the force needed to accelerate the cart without friction using the formula F = mass × acceleration, which equals 150N. The frictional force can then be found by subtracting this required force from the applied force: 220N - 150N equals 70N. This indicates that 70N of the applied force is used to overcome friction. Understanding these calculations is essential for solving similar physics problems. Mastering this concept can enhance comprehension of forces in motion.
PsyPhysics7
Messages
1
Reaction score
0
1. How much frictional force is acting on a 75 kg cart if a push of 220N results in an acceleration of 2.0m/s2?
(hint: how much force would have been required to accelerate the cart at that rate if there were no friction - the extra force is the amount needed to overcome friction)






I honestly have no idea how to solve this, I am in basic high school physics and my teacher's teaching styles don't work for me. Can anyone please help?
 
Physics news on Phys.org
Have a go at the problem mentioned in the hint. What force do you require to accelerate a 75 kg cart at a rate of 2.0 m/s^2
 
first find the force using mass * acceleration
then subtract the difference at easy as that.don't be scared because of your teacher.
 
Thread 'Minimum mass of a block'

Thread 'Minimum mass of a block'

Here we know that if block B is going to move up or just be at the verge of moving up ##Mg \sin \theta ## will act downwards and maximum static friction will act downwards ## \mu Mg \cos \theta ## Now what im confused by is how will we know " how quickly" block B reaches its maximum static friction value without any numbers, the suggested solution says that when block A is at its maximum extension, then block B will start to move up but with a certain set of values couldn't block A reach...
View full post »

Thread 'Electric field due to charges between 2 parallel infinite planes'

TL;DR Summary: Find Electric field due to charges between 2 parallel infinite planes using Gauss law at any point Here's the diagram. We have a uniform p (rho) density of charges between 2 infinite planes in the cartesian coordinates system. I used a cube of thickness a that spans from z=-a/2 to z=a/2 as a Gaussian surface, each side of the cube has area A. I know that the field depends only on z since there is translational invariance in x and y directions because the planes are...
View full post »

Similar threads

Push/Pull Force of wheeled cart on an incline
Replies
7
Views
4K
How can I determine the instant the block overcomes static friction?
2
Replies
61
Views
3K
For the friction formula when to use Fn(normal force)×mu and when F×mu
Replies
17
Views
2K
Determine the friction force in a stacked block scenario
Replies
23
Views
3K
How to Solve Acceleration of Cart on 3 Different Slopes?
Replies
10
Views
2K
Frictional Force and acceleration
Replies
6
Views
6K
Question on calculated friction force between a ramp and a cart
Replies
2
Views
4K
Finding Force by using the coefficient of friction and mass
Replies
16
Views
3K
Plotting the graph of Friction Force vs. time (Laws of motion)
Replies
1
Views
2K
How Does Friction Affect Acceleration on an Incline?
Replies
19
Views
3K

Hot Threads

Recent Insights

Back
Top