Q. Using a force of 28 Newton, a student pulls a 70 Newtons weight along the table top for a distance of 15 meter in 3 seconds. Calculate the power developed by the student.
Q. If vector "B" is added to vector C =3.0i + 4.0J, the result is a vector in the positive direction of the y axis, with a magnitude equal to that of vector "C". What is the magnitude of vector "B"?