Question: how to calculate the volume of a hot water cylinder?
Answer: where r is the radius and h is the height. Find the volume of a cylindrical can with radius 4 cm and height 7.5 cm. 2 The speed of a car after t seconds is given by the formula v = u + at where u is the starting speed in metres per second (m s–1) and a is the acceleration in metres per second per second (m s–2).