Solving a Physics Problem: Impulse and Momentum

In summary, the diagram shows a body, A, of mass 2.00 kg in a frictionless, horizontal gulley, being acted upon by a force of 0.1 N at 30⁰ below the horizontal for 5 seconds. After striking and sticking to body B of mass 3.00 kg, the force is removed and the combined masses have a speed of 0.086 m/s.
  • #1
pat666
709
0

Homework Statement



The diagram shows a body, A, of mass 2.00 kg resting in a frictionless, horizontal gulley in which it is constrained to move. It is acted upon by the force shown (0.1 N at 30⁰ below the horizontal) for 5s after which time it strikes and sticks to the body, B, of mass 3.00 kg, the force being removed at that instant. What will the speed of the combined masses be?

Homework Equations





The Attempt at a Solution


ok so i found the i cmpt of the force, from this i found the impulse. since the initial velocity is 0 the impulse is equal to the initial momentum, from there i solved and got v=0.086m/s could some please check this... thanks
 
Physics news on Phys.org
  • #2
Looks good.
 

FAQ: Solving a Physics Problem: Impulse and Momentum

What is impulse and momentum?

Impulse and momentum are two important concepts in physics that describe the motion of an object. Impulse is a measure of the change in momentum that occurs when a force is applied to an object for a certain amount of time. Momentum is a measure of an object's mass and velocity, and it determines how much force is needed to change its motion.

How are impulse and momentum related?

Impulse and momentum are related by the impulse-momentum theorem, which states that the impulse applied to an object is equal to the change in its momentum. This means that the greater the impulse applied to an object, the greater its change in momentum will be.

How can I calculate impulse and momentum?

Impulse can be calculated by multiplying the force applied to an object by the time it is applied, while momentum can be calculated by multiplying an object's mass by its velocity. In equations, impulse is represented as J = F * ∆t and momentum is represented as p = m * v.

What is the unit of measurement for impulse and momentum?

The unit of measurement for impulse is the Newton-second (N*s), while the unit of measurement for momentum is kilogram-meter per second (kg*m/s). This is because impulse is a product of force and time, while momentum is a product of mass and velocity.

How are impulse and momentum used in real-life applications?

Impulse and momentum are used in many real-life applications, such as in sports and car safety. In sports, players use the principle of impulse and momentum to increase the force of their movements, while car safety features like airbags use the principle of impulse to decrease the impact force on passengers during a collision.

Similar threads

How Does Impulse Relate to Momentum Change in Physics Problems?
Replies
7
Views
996
Momentum and impulse of a football
Replies
2
Views
2K
Horizontal impulse on a ball at rest on a plane (with friction)
Replies
14
Views
2K
Golf club 🏌️and ball ⛳ impulse problem
Replies
19
Views
2K
Impulse and Momentum: Ball and cart connected by a cord
Replies
24
Views
3K
How to Calculate Impulse in a Momentum Problem?
Replies
6
Views
1K
Pushing a stalled car out of an intersection
Replies
1
Views
2K
Vibrations: A momentum impulse starts a mass into oscillatory motion
Replies
4
Views
2K
Year1 Mechanics (angular momentum)
Replies
9
Views
2K
Momentum and impulse of jump problem
Replies
11
Views
3K

Hot Threads

Recent Insights

Back
Top