Question

One end of the rope is fixed to vertical wall and
other end pulled by horizontal force of 20 N. The
shape of flexible rope is shown in figure. The mass
of rope is-​

Answer 1

Answer:

The mass of the rope is 2 kg

Answer 2

Answer:

The correct option is (c) 3.5 kg.

Explanation:

Horizontal

F Sin30° = 20

F = 40 N

Vertical

F Cos30° = mg

F $\frac{\sqrt{3} }{2}$ = mg

m = $\frac{20\sqrt{3} }{10}$ = 3.5 kg

• Force is a factor that has the power to alter an object's motion. An object with mass can change its velocity, or accelerate, as a result of a force.
• An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction. It is calculated using the newton SI unit (N). The letter F is used to symbolize force.
• The net force acting on an object is equal to the rate at which its momentum varies over time, according to Newton's second law in its original formulation.

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