A metal cube has sides of length 4.5 cm, correct to the nearest 0.5 cm. the cube has melted down and the metal is used to make small spheres. each sphere has a radius of 3mm, correct to the nearest millimetre.

work out the greatest number of spheres that could be made from metal.

show your working clearly.​

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.

step-by-step explanation:

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