As the candle burns,its length decreases at a rate of 2cm every 20minutes. Write down the equation to calculate the length of the candle
original height = H
h(t) = height
dh/dt = -2cm/20min = -0.1 cm/min
so
h = H - 0.1 t
h in cm, t in minutes
To calculate the length of the candle, we can use the equation:
Length of the candle = Initial length - (Rate of decrease * Time)
Given that the rate of decrease is 2 cm every 20 minutes, we can substitute these values into the equation:
Length of the candle = Initial length - 2 cm/20 min * Time
Please note that we need to know the initial length of the candle and the time elapsed to calculate the current length accurately.