Question

why work energy theorem is called scalar form of Newton's second law

Answer 1

Because iss theorem se sirf magnitude nikalta hai direction nhi.....

Answer 2

Newton's law states that F=ma. Now integrate on both sides with respect to displacement. By the definition ofwork, on the RHS, Thus the total workdone is equal to the change in kineticenergy. As this deals with scalarquantities and can be derived fromNewton's second law, hence it isnamed the above.