What is the average force on the wall?

In summary, average force is the measure of the overall force applied to an object over a period of time, calculated by dividing the total force by the duration of the period. It is important in scientific experiments as it helps to understand the impact and effect of a force on an object's motion and changes in its velocity. Average force can be negative, which indicates a force acting in the opposite direction. The average force on a wall can affect its stability by either strengthening or weakening it, depending on its magnitude.
  • #1
zade70
61
0

Homework Statement


A ball hits the wall in a normal direction with v=10m/s. After the hit which lasted 0.2 Seconds, it turned in the same direction with v=10m/S. Knowing that its mass is 0.5 kg, find the average force that hit the wall.

Homework Equations


F=m*a, a= (v-v0)/t

The Attempt at a Solution


a=(0-10)/0.2=-50m/S2, F= 50*0.5= 25N, but the answer is 50N
 
Physics news on Phys.org
  • #2
What is the final velocity minus the initial velocity? Your calculation assumes the final is zero...
 

1. What is the definition of average force?

Average force is the measure of the overall force applied to an object over a period of time. It takes into account the magnitude and direction of the force.

2. How is average force calculated?

Average force is calculated by dividing the total force applied over a given period of time by the duration of that period.

3. Why is average force important in scientific experiments?

Average force is important because it allows scientists to understand the overall impact and effect of a force on an object over a period of time. It helps to determine the object's motion and changes in its velocity.

4. Can average force be negative?

Yes, average force can be negative. A negative average force indicates that the force is acting in the opposite direction of the object's motion.

5. How does the average force on the wall affect its stability?

The average force on a wall can affect its stability by either adding or subtracting from the wall's overall structural strength. If the average force is too high, it can cause the wall to collapse or weaken over time. On the other hand, if the average force is too low, the wall may not be able to withstand external forces such as wind or earthquakes.

Similar threads

  • Introductory Physics Homework Help
Replies
5
Views
4K
  • Introductory Physics Homework Help
Replies
23
Views
1K
  • Introductory Physics Homework Help
Replies
23
Views
2K
  • Introductory Physics Homework Help
Replies
6
Views
733
  • Introductory Physics Homework Help
Replies
22
Views
2K
  • Introductory Physics Homework Help
Replies
9
Views
1K
  • Introductory Physics Homework Help
Replies
3
Views
4K
  • Introductory Physics Homework Help
Replies
6
Views
1K
  • Introductory Physics Homework Help
Replies
5
Views
4K
  • Introductory Physics Homework Help
Replies
5
Views
1K
Back
Top