Speed, Velocity, and Acceleration

90 mph

80 m/m

50 m/s

90 m/s

acceleration

speed

velocity

average speed

average speed

acceleration units

velocity units

calculating speed

acceleration

velocity

average speed

speed

average speed

acceleration units

velocity units

calculating speed

Speed

Velocity

Acceleration

Motion

distance and direction

direction and time

distance and time

distance, time and direction

A car driving 55 miles per hour south.

A bicyclist traveling 10 meters per hour toward the next town.

A roller coaster is traveling 10 meters per second.

A rocket blasting off at 2,500 meters per second toward space.

A car driving 55 miles per hour south.

A bicyclist traveling 10 meters per hour.

A roller coaster is traveling 10 meters per second.

A rocket blasting off at 2,500 meters per second.

Speed

Velocity

Neither

Both

Speed

Velocity

Neither

Both

Yes, this is acceleration since the swimmer starts to speed up to pull ahead.

Yes, this is acceleration since the swimmer uses the wall to change directions.

No, this is not acceleration since there is no speeding up, slowing down, or change in direction.

+25m/s²

-0m/s²

+5m/s²

5m/s

0.3 km/hr

30 km/hr

0.3 km/hr/hr

300 km/hr