The discussion revolves around calculating the average net force acting on a hatch that is thrown and then stopped upon impact. The problem involves concepts from dynamics, specifically relating to force, mass, and acceleration.
The discussion is active, with participants exploring different approaches to find acceleration and questioning the necessary equations. Guidance has been offered regarding the relationship between velocity change, time, and acceleration.
There is a noted confusion regarding the units of time, as it is given in milliseconds, which may affect calculations. Participants are working with the provided mass and velocity but are seeking clarification on how to proceed with the calculations.
You should be familiar with the impulse/momentum equation. Or just use F_net=ma. Give it a try.rcmango said:Homework Statement
A 41 kg hatch is thrown at a speed of 215 m/s and is immediately stopped once it hits something that lasts for a time of 5.6 ms.
So What is the magnitude of the average net force that acts on the hatch during the point that its hitting something?
Homework Equations
The Attempt at a Solution
where do i start?
please help me with this one.
The mass is given. What's the equation to use to find acceleration when the velocity change and time are known?rcmango said:okay, so if i use the formula of F_net=ma
i don't know the net forces (Newtons)
i don't know the mass or the acceleration (m*a)
i do know the velocity and the time.
so must i use an equation to find the acceleration? so I'm closer to my answer?
what do i need to solve for next?
watch units, the change in v is in m/s, and t is given in milliseconds(i.e., t =.0056 seconds).rcmango said:the formula is a = chng velocity / chng time
so a = 215 / 5.6 ?