tiffany is taking her end of course exam. she has completed questions 16 and the prgress bar shows 40%. how many questions are in the tesat

40

Step-by-step explanation:

16 ÷ 40% = 40

40% of 40 = 0.4 × 40 = 16

40

Step-by-step explanation:

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.