Wednesday

April 1, 2015

April 1, 2015

Posted by **george** on Monday, February 4, 2013 at 9:59am.

a.) how fast is the car going at the end of the braking period?

b.) how far has the car gone?

- physics -
**drwls**, Monday, February 4, 2013 at 10:45amAfter six seconds, the car attains a velocity of 6*2.7 = 16.2 m/s, and will; have travelled a distance (a/2)*t^2 = 486 m.

Then the deceleration starts.

(a) After two seconds of deceleration,

V = 16.2 - 2.0*2 = 12.2 m/s

(b) Average speed during deceleration for 2 seconds = 14.2 m/s

Total distance travelled = 486 + 2*14.2 = 514.4 m

**Answer this Question**

**Related Questions**

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

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

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

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

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...

help - A car starts from rest and travels for 8.0 s with a uniform acceleration ...

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 ...

Physics - A car starts from rest and travels for 5.0s with a uniform ...