Average Net Force on a Car 0-60mph: Weight Comparison

AI Thread Summary
To calculate the average net force on a car accelerating from 0 to 60 mph, first determine the car's acceleration using the formula a = (final velocity - initial velocity) / time. Once the acceleration is known, apply Newton's second law, F = ma, to find the net force, where m is the mass of the car. The net force can then be compared to the car's weight, calculated as weight = mg, where g is the acceleration due to gravity. Understanding these equations is crucial for solving the problem effectively. This approach will provide a clear comparison between the average net force and the weight of the car.
shiney612
Messages
3
Reaction score
0

Homework Statement


What is the average net force on a car during a zero to 60mph (0 to 30m/s) acceleration? Compare this force to the weight of the car.


Homework Equations





I just don't know what equations to do and need help to figure out what to do.
 
Physics news on Phys.org
Hi shiney612, welcome to PF.

Can you find the acceleration of the car? What equation(s) would you use for that?

Once you have the acceleration, can you find the force? What equation does that involve?
 

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
View full post »
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
View full post »

Similar threads

Motion of a Parachuter (Terminal Velocity, Time of Flight, Distance)
Replies
10
Views
1K
Block on a Spring, Nonconstant Net Force
Replies
6
Views
2K
Equilibrium of Forces and Torques on Sawhorses Supporting a Person on a Board
Replies
6
Views
2K
Speed of train car when sand spilling out from it
Replies
17
Views
4K
To help reduce the severity of accidents [Average net force]
Replies
7
Views
2K
Find net external work of a system w/ 2 objects w/ opposite forces
Replies
8
Views
1K
Finding net force or acceleration given 2 masses
Replies
13
Views
2K
Motion on a rough inclined plane
Replies
5
Views
2K
How to find the normal force of a car jack lifting a car
Replies
7
Views
4K
What direction is the net force acting on a car going around a circular track?
Replies
8
Views
7K

Hot Threads

Recent Insights

Back
Top