A student drops a small black sphere alongside a vertical scale marked in centimetres. A number of flash photographs of the sphere are taken at 0.10 s intervals:

The first photograph is taken with the sphere at the top at time t = 0 s.

a. Explain how Figure 1.19 shows that the sphere reaches a constant speed.

b. Determine the constant speed reached by the sphere.

c. Determine the distance that the sphere has fallen when t = 0.80 s.

d. In a real photograph, each image of the sphere appears slightly blurred because each flash is not instantaneous and takes a time of 0.0010 s.

Determine the absolute uncertainty that this gives in the position of each position of the black sphere when it is travelling at the final constant speed.

Transcribed Image Text:

This diagram is shown sideways- the first black dot is at 0 cm and the next at 4 cm. Figure 1.19 06 120 130