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Question 3 - Problems - Chapter 2

Problem:

Glasiers sometimes advance 20m in one year

Question:

Express this speed in m/s and in cm/day

Solution:

Distance $s = 20m$

Time $t = 1year$

Average speed $v = \frac{s}{s}$ m / year

There are 3600 seconds x 24 hour x 365.24 days seconds in one year

There are 100 cm in 1 m

In [1]:
Distance = 20
Time_y = 1
Time = 1 * 3600 * 24 * 365.24
Speed = Distance / Time # in m per second
Speed_cm_d = (Speed * 100 * 3600 * 24)
# limit to 2 significant figures as distance is given in 2 significants too
print(f'The speed of the glasier is {Speed:.1e} m/s') 
print(f'Im cm per day is this {Speed_cm_d:.1f} cm/d')
The speed of the glasier is 6.3e-07 m/s
Im cm per day is this 5.5 cm/d