Answer:
u = 18 cm
Explanation:
given,
radius of curvature = 60 cm
magnification of mirror = 2.5
distance of object = ?
R = 2 f
f = R/2
f = 60/2 = 30 cm


v = -2.5 u
now,
Using mirror formula
u = 0.6 x 30
u = 18 cm
distance of object be equal to u = 18 cm
Answer:as per as Newtons second law, The forces exerted on the rope create tension.
As such,The tension is equal to the applied force.The tension is trasmitted to the opposite side and of the rope delivering the applied force.
Hope this helps.. :)
elasticity stretches and can also return to it's normal size ..