Which number is between √21 and 3π/2

√22 = 4.6904...

Step-by-step explanation:

√21 = 4.5826...

3π/2 = 4.7124...

so a number between them has to be near the value 4.6

the answer would be √22 = 4.6904...

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.

a² + b²= c²

24² + 7² = c²

c= 25