Question

A car full of load is moving. So CAN the total K.E. be equal to the sum of the K.E. of load and K.E. of car?
I mean, I know, it can be found by simply adding their masses and putting it in the formula ½mv². But is the aforementioned method correct??
Calculating K.E. of load and K.E. of car, and then adding them up would make no difference to the ans, no?

[I'm saying this coz it'll be easier to find the K.E. when car is unloaded and it's speed increases]
Kindly help me if my logic is wrong.​

Answer 1

Answer:

You're correct. Adding KE of the load and the KE of the car shouldn't be a problem, given the load travels at a velocity equal to the car the whole time. I hope this helps you.