## Exercise 3.5 A

Specify the velocity of the puck.

Answer: $29\ m/s\ \left(\approx104\ km/h\right)$

## Exercise 3.5 B

Specify the velocity of the bandy ball.

Answer: $32\ m/s\ \left(\approx115\ km/h\right)$

## Exercise 3.5 C

Specify the velocity of the tennis ball.

Answer: $39\ m/s\ \left(\approx140\ km/h\right)$

## Exercise 3.5 D

Specify the velocity of the frisbee.

Answer: $17\ m/s\ \left(\approx59\ km/h\right)$

## Exercise 3.5 E

Determine velocity of the bubble.

Tip: Measure the time spent by the bubble at certain distances and move the values to the (t, s) coordinate system. Fit a straight line to the points. What can you expect from the slope of the line?
Answer: $0{,}07\ m/s$

## Exercise 3.5 F

Find out at what angle the speed of a bubble is the greatest? Show the results graphically.

Tip: Place the observation values for each angle in the (t, s) -coordinate system.