A force of 1600 dynes acts on a rigid body, such that the perpendicular distance
between the force and its turning point is 40cm. Calculate the moment of force.
Give your answer in SI unit.
Share
A force of 1600 dynes acts on a rigid body, such that the perpendicular distance
between the force and its turning point is 40cm. Calculate the moment of force.
Give your answer in SI unit.
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Verified answer
Answer:
Given:
⇒ Force (F) = 1600 dyne
⇒ Perpendicular distance (r) = 40 cm
To Find:
⇒ Moment of force (τ)
Solution:
⇒ Moment force = Torque (τ)
Formula to be used here is
→ Since, It is a cross product
Therefore,
→ Since it is given in the question as perpendicular
∴ θ = 90°
So,
sinθ = sin 90° = 1
Hence,
In CGS units Moment of force is dyne centimetre
In SI units the Moment of force is Newton meters
Hence,
Moment of Force or Torque (τ) in SI units is
⇒ 0.0064 Newton meter