Question

a pendulum bob of 1N is held at an angle teta from the vertical by a horizontal force of 2N as shown . The tension in the string supporting the pendulum bob (in Newton ) is​

Answer 1

◆【Solution】◆

Mg = 1N

Angle with verticle = ∆

Ma = 2N

Tension = T

Where m is the mass of bob

Bob is in stationary state so all the forces balance each oither.

♂ Horizontal forces. ♂

TSin∆ = Ma

TSin∆ = 2N.....(1)

♂ Verticle force ♂

Tcos∆ = mg

Tcos∆ = 1N......(2)

Add squares of (1) and (2)

T²(Cos²∆ + Sin²∆) = 4 + 1

T² = 5

◆【Tension = √5】◆

#answerwithquality

#BAL