Find rm, the length of the moment arm of the force. express your answer in terms of l and θ.

rm = r sin θ

τ = -r sin θ F

Torque (moment of force) with respect to the pivot point P is defined as the product of the magnitude of the force F and the moment's arm

The torque can be clockwise or counterclockwise (counterclockwise marked +, clockwise marked -)

For objects with 2 or more forces, the total torque is:

From pictures attached

τ = -rm  x F

rm = (arm force which is perpendicular to the work line)

⇒ negative sign because the torque is clockwise  to the point P

while the magnitude of the arm force rm:

rm = r sin θ

tangential force

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static equilibrium

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Newton's Law

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weather forecasts are done by collecting data about the current state of the atmosphere mainly the temperature, humidity and wind and using meteorology, to determine the atmosphere that evolves over time. the h and l mean the high and low pressure. the red strip is a warm front. the blue strip is a cold front. the blue and red strip is a stationary front. the purple strip is a occluded front.

explanation: