1. the chance of contracting the flu when coming into contact with an infected person is estimated to be 35%. suppose that a family of five comes into contact with an infected person. using a simulation answer the following questions. a. what is the expected number of people in the family that will contract the flu?

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.