Check by the method of dimension whether the following equations are correct or not
v=1/2l root of t/m where v=frequencyof vibration, l=length, t=tension, m=mass per unit length

Aperson walking 1 mile everyday for exercise, leaving her front porch at 9: 00 am and returning to her front porch at 9: 25 am. what is the total displacement of her daily walk? a) 1 mileb) 0c) 25 minutes d) none of the above