What forces affect a lawnmower being pushed at a constant speed?

  • Thread starter rachael
  • Start date
  • Tags
    Momentum
In summary, momentum is a measure of an object's motion, determined by its mass and velocity. It is calculated by multiplying an object's mass by its velocity. The momentum of a lawnmower affects its performance by determining how easy or difficult it is to move and how much force is needed to stop it. Factors such as mass, velocity, friction, and terrain can affect the momentum of a lawnmower. To change the momentum of a lawnmower, its mass or velocity can be altered, and external factors can also play a role.
  • #1
rachael
55
0
5 A man pushes a lawnmower of mass 20 kg at a
constant speed with a force of 100 N directed along
the handle, which is at 35° to the horizontal.
a What is the horizontal retarding force on the
mower?
b What is the perpendicular reaction of the ground on
the mower?
 
Physics news on Phys.org
  • #2
What are your thoughts on this?
 
  • #3
i don't know
but i tried w=mg
then i applied wsin35
but it was incoorect
 
  • #4
Resolve the force the man applies along the axes. What are the other forces acting on the mower?
 

What is momentum?

Momentum is a measure of an object's motion, which is determined by its mass and velocity. In simpler terms, it is the amount of force required to stop an object from moving.

How is momentum calculated?

Momentum is calculated by multiplying an object's mass by its velocity. The formula for momentum is: p = m x v, where p is momentum, m is mass, and v is velocity.

How does the momentum of a lawnmower affect its performance?

The momentum of a lawnmower affects its performance by determining how easy or difficult it is to move and how much force is needed to stop it. A lawnmower with a higher momentum will require more force to start and stop, making it more difficult to maneuver.

What factors can affect the momentum of a lawnmower?

The momentum of a lawnmower can be affected by its mass and velocity, as well as external factors such as friction and the terrain it is being used on. A lawnmower with a heavier mass or higher velocity will have a greater momentum.

How can the momentum of a lawnmower be changed?

The momentum of a lawnmower can be changed by altering its mass or velocity. For example, adding weight to the lawnmower or increasing its speed will increase its momentum. Additionally, external factors such as the terrain and friction can also affect the lawnmower's momentum.

Similar threads

Solving Work Done by Pushing a Lawnmower
    • Introductory Physics Homework Help
Replies
3
Views
1K
Work Problem - Pushing a lawnmower
    • Introductory Physics Homework Help
Replies
18
Views
12K
Calculating Force and Mass on a Lawnmower: A Gardener's Guide
    • Introductory Physics Homework Help
Replies
4
Views
1K
Work done during a collision -- Change in Kinetic Energy & change in Momentum
    • Introductory Physics Homework Help
Replies
1
Views
561
A person pushes a 10.0 kg lawn mower at constant speed with a force of
    • Introductory Physics Homework Help
Replies
6
Views
5K
Speed of train car when sand spilling out from it
    • Introductory Physics Homework Help
Replies
17
Views
2K
A Person Pushes a lawn Mower. Physics question Need
    • Introductory Physics Homework Help
Replies
2
Views
4K
How Do You Calculate the Movement of a Push Lawn Mower?
    • Introductory Physics Homework Help
Replies
4
Views
976
Pulling a sled across snow with a rope at an angle
    • Introductory Physics Homework Help
Replies
8
Views
3K
Equilibrium of Forces and Torques on Sawhorses Supporting a Person on a Board
    • Introductory Physics Homework Help
Replies
6
Views
770

Hot Threads

Recent Insights

Back
Top