A small 20-kg canoe is floating downriver at a speed of 2 m/s. 40 J is the canoe’s kinetic energy.
Answer: Option A
Step-by-step explanation:
The given canoe has the mass and is being given to move at a speed. Therefore the kinetic energy of the canoe can be calculated using the following method,
Given that mass of the canoe = 20 kg and its speed =1 m/s
As we know that the Kinetic energy has the formula,
![\text {Kinetic energy}=(1)/(2) \boldsymbol{m} \boldsymbol{v}^(2)](https://img.qammunity.org/2020/formulas/physics/middle-school/um0b32nblo006kedl8vorrt30px5ebrk2a.png)
Therefore, substituting the value into the equation, we get,
= 40 J