Question

1 The following table gives the results of the measurements of train resis-
tances, V is the velocity in miles per hour, R is the resistance in pounds
per ton-
V 20
40
60
80
100
R 5.5 9.1
14.9 22.8 33.3
Find the rate of change of resistance at V = 63.
[5​

Answer 1

Answer:

v20

40

60

80

100

R5. 5 9.1

14.9 22.8 33.3