forces Flashcards
1
Q
What’s the equations for force?
A
F = change in momentum/ change in time
2
Q
Explain why the egg is less likely to break when dropped onto soft foam rather than onto a concrete floor.
A
(soft foam) increases the time taken to stop
increases the time to reduce the momentum
reducing the force (on the egg) allow impact for force
3
Q
What is the equation for momentum?
A
p=mv (momentum = mass x velocity)
4
Q
What is inertia?
A
The tendency of an object to continue in its state of rest of motion
5
Q
Equation for final velocity?
A
Final velocity squared = initial velocity squared + 2(acceleration)(distance)
v2=u2+2as
6
Q
Equation for velocity?
A
Velocity = displacement / time
