Posted by **John** on Monday, March 29, 2010 at 2:43am.

Which of the following has an acceleration in the same direction as the object's motion?

1. Vi=3.5m/s [east]; Vf=7.5m/s [east]

2. Vi=45km/h [north]; Vf=60km/h [north]

3. Vi=15m/s [right]; Vf=10m/s [left]

Textbook Ans: 1 and 2

Can someone explain why? Cause I don't know how to get the answer. Thanks very much.

## Answer this Question

## Related Questions

- cardinal directions - what is the difference between Northeast and North of East...
- physics - An object has a velocity of 5.00 m/s at an angle of 30.0˚ north ...
- physics - A car A is going north-east at 80km/h and another car B is going south...
- Physics - A train at a constant 41.0 km/h moves east for 28 min, then in a ...
- Physics - A train at a constant 44.0 km/h moves east for 42 min, then in a ...
- Physics - A train at a constant 44.0 km/h moves east for 42 min, then in a ...
- physics - A train at a constant 68.0 km/h moves east for 41 min, then in a ...
- physics - A train at a constant 68.0 km/h moves east for 41 min, then in a ...
- physics - A train at a constant 41.0 km/h moves east for 38 min, then in a ...
- Physics - A train at a constant 41.0 km/h moves east for 38 min, then in a ...

More Related Questions