Question
5. A cyclist and their bike are travelling at a constant velocity of energy store is 2.7kl. 8=43m/s.Theirkinequetsm=(2times 7k)/(V^2) __
Answer
4
(316 Votes)
Sinead
Master · Tutor for 5 years
Answer
Calculate the value above will get the answer as the final combined mass of the cyclist and their bike.
Explanation
## Step 1: Understanding the principleTo find the combined mass of the cyclist and their bike, we need to rearrange the kinetic energy equation. The formula of kinetic energy is
. By rearranging the formula, we can calculate the combined mass
.### Formula derivation:
## Step 2: Insert values into the formulaWe know the values of
(which is 2.7kl or 2700 J when it's converted from kilojoules to joules) and
which is 8.43 m/s. Substitute the known values into the retrieved formula.The calculation will be:\(M = \frac{2 \times 2700 J}{(8.43 \: m/s)^2}\)