A 100kg, 2m long plank sticks horizontally out of a wall. A 600N force is applied...

Question

Question

A 100kg, 2m long plank sticks horizontally out of a wall. A 600N force is applied...

A 100kg, 2m long plank sticks horizontally out of a wall. A 600N force is applied at the other end at the following angles:

a) 60o

b) 120o

c) 0o

Find the NET TORQUE about the attachment point for each. SHOW ALL WORK.

science physics

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Answer 1

Answer #1

Solution)

Given,

Mass, m=100 kg

Length, r=2 m

Force, F=600 N

Part a)

We know, Torque, T= r*Fsintheta

Substitute values,

T=2*600*sin60= 1039.23 Nm (Ans)

========

Part b)

Theta=120°

T=2*600*sin120= 1039.23 Nm (Ans)

========

Part c)

Thet=0°

So, Torque=0 (since sin0=0)

=============

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Answer 2

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