Wednesday

October 22, 2014

October 22, 2014

Posted by **Taylor** on Monday, September 6, 2010 at 9:52pm.

1) How fast is the car going at the end of the breaking period?

2) How far has the car gone from its start?

- physics -
**bobpursley**, Monday, September 6, 2010 at 10:04pmLets look at momentum.

The impulse equation ought to equal the final momentum.

F1*time1+F2*time2=mass*vfinal

but Force= mass*acceleration.

mass*1.8*4.9-mass*1.7*1.5= mass*Vfinal

solve for Vfinal.

How far?

distance= avg velocity*time

= Vf/2 * (1.5+4.9)

**Answer this Question**

**Related Questions**

Physics - A car starts from rest and travels for 6.0 s with a uniform ...

Physics - A car starts from rest and travels for 5.9 s with a uniform ...

physics - A car starts from rest and travels for 4.5 s with a uniform ...

Physics - A car starts from rest and travels for 7.0 s with a uniform ...

physics - A car starts from rest and travels for 6.3 s with a uniform ...

constant acceleration - A car starts from rest and travels for 5.0 s with a ...

physics lon capa - A car starts from rest and travels for 4.93 s with a uniform...

physics lon capa - A car starts from rest and travels for 4.93 s with a uniform...

physics - A car starts from rest and travels for 7.0 s with a uniform ...

physics - A car starts from rest and travels for 7.8 s with a uniform ...