- #1

lola1227

- 25

- 7

- Homework Statement
- There is a situation in which M1=0.5kg, M2=0.5kg, V1 = 3m/s and V2=0. Find V1’ and V2’. I know we do component vectors and the we use the formula M1V1+M2v2=M1V1’+M2V2’ but I don’t know if we do perpendicular/parallel or vertical/horizontal and what we do with three angles?

- Relevant Equations
- M1V1+M2v2=M1V1’+M2V2’

Parallel:

M1V1+M2v2=M1V1’+M2V2’

(0.5)(3)+0=(0.5)(cos60)(3)+V2’Cos(x)(0.5)

V2’cos(x)=

Perpendicular:

M1V1+M2v2=M1V1’+M2V2’

0=(0.5)(0.3)(sin60)+V2’sin(x)(0.5)

V2’sin(x)=

And the divide 2 by 1

Which is tan(x)=2/1

And then plug then back into solve, but I don’t think we do it like this because we are only solving v2’ but we need v1’ as well?

M1V1+M2v2=M1V1’+M2V2’

(0.5)(3)+0=(0.5)(cos60)(3)+V2’Cos(x)(0.5)

V2’cos(x)=

Perpendicular:

M1V1+M2v2=M1V1’+M2V2’

0=(0.5)(0.3)(sin60)+V2’sin(x)(0.5)

V2’sin(x)=

And the divide 2 by 1

Which is tan(x)=2/1

And then plug then back into solve, but I don’t think we do it like this because we are only solving v2’ but we need v1’ as well?