Holly has an empty metal barrel.
The barrel is in the shape of a cylinder.
The height of the barrel is 1.2m.
The diametre of the base of the barrel is 80cm.
Holly fills the barrel with water from a tap.
The tap fills at the rate of 1 litre per second.
Find how long it takes to fill the barrel.
Give your answer to the nearest minute.
The barrel is in the shape of a cylinder.
The height of the barrel is 1.2m.
The diametre of the base of the barrel is 80cm.
Holly fills the barrel with water from a tap.
The tap fills at the rate of 1 litre per second.
Find how long it takes to fill the barrel.
Give your answer to the nearest minute.
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Volume = pi x r^2 x height
= pi x 40^2 x 120
= 603186 cubic cm = 603.186 litres
At 1 litre per second the barrel will take 603.186 seconds to fill, which equates to approx 10 minutes
= pi x 40^2 x 120
= 603186 cubic cm = 603.186 litres
At 1 litre per second the barrel will take 603.186 seconds to fill, which equates to approx 10 minutes