A mass of M kg is suspended by a weightless string. Find the horizontal force that is required to displace it until the string makes an angle of 45^(@) with the initial vertical direction.

A mass of M kg is suspended by a weightless string. Find the horizonta

1.	A mass of M kg is suspended by a weightless string. Find the horizontal force that is required to displace it until the string makes an angle of 45^(@) with the initial vertical direction.
Answer» ANSWER :`MG (SQRT(2) - 1)`