Question

please answer to my question ​

Answer 1

Answer:

HERE IS THE ANSWER HOPE IT HELPS

Answer 2

work done= F.d (which is a dot product)

we can write it as FDCosTHETA

now according to vectors.. the result of dot product is always scaler so work done is scalar..

points to remember here are

dot products are scalar

cross products are vector..

hope it helps..