1c.1 momentum

Question 1

what is momentum

Answer 1

a measure of an object’s motion

Question 2

momentum =

Answer 2

p (kg m s-1) = mass (kg) x speed (m s^-1)

Question 3

is momentum a vector or scalar

Answer 3

vector since velocity is a vector and in momentum, the direction is very important

Question 4

how can we link newtons 2nd law with the rate of momentum

Answer 4

momentum is the measure of accelerating force, and the time applied for it so n2law is f=ma can be rewritten as dp/dt to give us the rate of change of momentum

Question 5

what is the principle of conversation of linear momentum

Answer 5

the vector sum of the momenta of all objects in a system is the same before and after any collision between an object

Question 6

what is the equation for the conversation of linear momentum

Answer 6

Pboth = Mboth x Vboth

Question 7

what are explosions in momentum?

Answer 7

in a situation in which a stationary object (or system of joined objects) separates into component parts (explode) that move in different velocities. momentum must be conserved

Question 8

what is coalesce

Answer 8

it is when two objects join together and become one and move off together in collisions

Question 9

what is impulse

Answer 9

change of momentum it is equal to p = Ft

Question 10

newtons third law and momentum

Answer 10

since for every force, there is an equal and opposite force then if an object has a force (p/t) forward there will be a force (p/t) equal and opposite to the momentum conserved