Posted by **Lycra** on Friday, April 13, 2012 at 6:01am.

A truck of mass 2000kg travelling due south collides at an intersection with a car of mass 1200kg travelling due east. The car and truck become entangled and move off to the south-east. The truck driver claims to have been travelling at exactly 60km/hr(the speed limit) just prior to impact. Determine whether the car was exceeding the speed limit.

- physics -
**drwls**, Friday, April 13, 2012 at 7:00am
To have a final southeast direction, the initial momenta of the truck and car must have been equal in magnitude.

If the heavier truck was travelling at the 60 km/h speed limit, the car must have been going 100 km/h.

(100*1200) = (60*2000)

## Answer This Question

## Related Questions

- physics - Car a with a mass of 1250kg is travelling at 30m/s to the east. Car b ...
- physics - A laden lorry of mass 3000kg travelling due east at 40 m.s -1 collides...
- physics - 1) What average power is required for a runner with a mass of 85 kg to...
- math - A large truck with a mass of 6500·kg and going 20·m/s east collides with ...
- Science - A car of mass m travelling at 20 m/s east on a straight level road and...
- Physics - A blue car with mass mc = 410.0 kg is moving east with a speed of vc...
- Physics - 1. Car A, with mass of 1250 kg, is travelling at 30 m/s to the east. ...
- Physics - A small car (mass 380 ) is pushing a large truck (mass 1000 ) due east...
- Physics 30 - a 2000kg car traveling east at 24m/sec enters an icy (frictionless...
- FREE BODY DIAGRAM calculus - A car is traveling north towards an intersection at...

More Related Questions