All Questions
3
questions
3
votes
2
answers
4k
views
Why do we feel weightlessness during free fall?
An object in free fall accelerates towards the Earth at a acceleration equal to $g$ (the accleration due to gravity). Now if we ignore the air resistance, why do we feel weightlessness? I could not ...
- 115
49
votes
6
answers
29k
views
Why is bench pressing your bodyweight harder than doing a pushup?
Why does bench pressing your own bodyweight feel so much harder than doing a push-up?
I have my own theories about the weight being distributed over multiple points (like in a push-up) but would ...
- 545
3
votes
3
answers
5k
views
Weight and force of jumping person
The other day my daughter was standing on my back. She weighs, let's say, 35 kg. I assume that the force involved is product of gravity (as in $F=ma$)?
Then, she jumped off my back, and suddenly the ...
- 141