A body thrown upwards with some external force

In summary: So the answer would be 100N*1/2= 50N.Did this problem come from a textbook? Or is it a problem you came up with on your own?As it stands, there is not enough information to answer the question.
  • #1
Anjum S Khan
26
3

Homework Statement


A ball of mass of 1Kg is held in hand. The moment it is released from hand, without any delay it is hit by an external force of 100N in upwards direction. How high will the body go ?

Homework Equations

The Attempt at a Solution


I know how to solve if instead of Force we consider initial velocity, then it becomes a standard problem.
 
Physics news on Phys.org
  • #2
Did this problem come from a textbook? Or is it a problem you came up with on your own?

As it stands, there is not enough information to answer the question.
 
  • Like
Likes cnh1995
  • #3
This sounds like an impulse problem:
From (https://en.wikipedia.org/wiki/Newton's_laws_of_motion#Newton.27s_second_law)

"Impulse
An impulse J occurs when a force F acts over an interval of time Δt, and it is given by:
31f32d40451a63d365447185488faed9.png

Since force is the time derivative of momentum, it follows that
b3e1de85baa1adfe7dc442e69b93b45e.png

This relation between impulse and momentum is closer to Newton's wording of the second law.
Impulse is a concept frequently used in the analysis of collisions and impacts."

This should tell you what the instantaneous change in velocity should be from in impulse of 100N.
 
  • #4
jbriggs444 said:
Did this problem come from a textbook? Or is it a problem you came up with on your own?

As it stands, there is not enough information to answer the question.
I created it on my own.
 
  • #5
Anjum S Khan said:
I created it on my own.
Knowing the upward force is not enough to know how fast an object will move. It can tell you how fast the object will accelerate. In order to know how fast it will move, you must also know for how long the force is applied.
 
  • Like
Likes cnh1995
  • #6
RUber said:
This should tell you what the instantaneous change in velocity should be from in impulse of 100N.
Except that impulse is not measured in Newtons. It is measured in Newton-seconds.
 

What is the definition of "A body thrown upwards with some external force"?

"A body thrown upwards with some external force" refers to the physical motion of an object being launched into the air by an external force, such as throwing or kicking. This force causes the object to move vertically against the force of gravity.

What are the forces acting on a body thrown upwards?

The two main forces acting on a body thrown upwards are the external force that launches the object and the force of gravity pulling the object towards the ground. Other factors such as air resistance may also affect the motion of the object.

What is the equation for calculating the height of a body thrown upwards?

The height of a body thrown upwards can be calculated using the equation h = ut + 1/2at^2, where h is the height, u is the initial velocity, t is the time, and a is the acceleration due to gravity.

What happens to the velocity of a body thrown upwards as it reaches its highest point?

As a body thrown upwards reaches its highest point, its velocity will decrease to zero. This is because the force of gravity is constantly acting on the object, slowing it down until it reaches a point of zero velocity.

How does air resistance affect the motion of a body thrown upwards?

Air resistance, also known as drag, can affect the motion of a body thrown upwards by reducing its velocity and causing it to fall to the ground at a slower rate. This is because air resistance acts in the opposite direction of the motion of the object, creating a force that opposes its motion.

Similar threads

Replies
8
Views
317
Replies
7
Views
800
  • Introductory Physics Homework Help
Replies
4
Views
5K
  • Introductory Physics Homework Help
Replies
5
Views
12K
  • Introductory Physics Homework Help
Replies
5
Views
3K
  • Introductory Physics Homework Help
Replies
4
Views
993
  • Introductory Physics Homework Help
Replies
11
Views
2K
  • Introductory Physics Homework Help
Replies
3
Views
2K
  • Classical Physics
2
Replies
61
Views
3K
  • Introductory Physics Homework Help
Replies
9
Views
2K
Back
Top