All Questions
8 questions
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Clarification on Momentum vs Inertia in Exerting Force when Stopping
I encountered a physics question in an exam four years ago that I believe may have had an incorrect answer key. I'm seeking clarification on the correct concept.
The question was:
The property of ...
2
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4
answers
183
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Does it take more energy to bring a car to a halt if it is still accelerating on impact than travelling at constant speed?
So, my physics is quite rusty, been out of varsity for a while.
A friend asked me this and I am still pondering. Here is the scenario:
2 Cars are travelling towards a wall, and make impact with the ...
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-2
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2
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Why is a larger force needed when you decrease the distance in regards of torque? [closed]
I think it's because of inertia.
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2
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Is there a way to find out how long a body will glide after a force is applied once? [closed]
Can you tell how long a body will retain it's motion after being given a push from x amount of force (ex. 15 force applied, motion will last 18 seconds)?
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1
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How do you apply each of Newton's laws to specific scenarios?
The 3 Newton's laws of motion are easy to be understood but examples citing which law caused it are so confusing - say a bullet fired from a gun - many people state it cause is 3rd Law - but I see all ...
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1
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1
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Convert inertia formula to excel calculator
I've been looking at this question:
"Weight" of moving object in a car collision
but to be honest I can't get my head around how to work it out myself (I'm not a physics student!). What ...
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1
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1
answer
452
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Is Newton's third law due to inertia?
Newton's third law states that each force has an equal and opposite force. If I kicked a ball, it would apply the same force on me. Is this due to the ball's inertia? To clarify, is the ball exerting ...
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Calculating New Velocity Vector of Moving Object [closed]
A 1kg object is moving through space. A force is applied to the object of 1N perpendicular to the direction of travel for 1 second.
Assuming there are no other external forces on this object, (...