Forces Vector Diagrams Learning Intention To use prior

Learning Intention: To use prior skills in drawing vector diagrams to solve questions involving

Resultant Force The resultant force is the one force which can replace all the

VECTOR DIAGRAMS - REMINDER Could be displacements, velocities or forces. 1) Check arrows are

Examples Now, work through these examples as a class, completing the solution in your

Success Criteria: The skills built up in a previous section will be used to

Now, use the space in your workbook to produce a summary of force vector

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Forces Vector Diagrams

Learning Intention: To use prior skills in drawing vector diagrams to solve questions involving forces. Success Criteria: The skills built up in a previous section will be used to solve vector problems involving forces.

Resultant Force The resultant force is the one force which can replace all the forces acting on an object and have the same effect. We will use our “right-angled” vector diagrams to find the resultant force.

VECTOR DIAGRAMS - REMINDER Could be displacements, velocities or forces. 1) Check arrows are top to tail. 2) Calculate the “magnitude” using Pythagoras (A 2 = B 2 + C 2) 3) Calculate the bearing using: tan x = o a Remember; bearings are taken from the START point. Draw in a north line and go clockwise to the resultant.

Examples Now, work through these examples as a class, completing the solution in your workbook: Example 1: A parachutist is falling to the ground. She has a weight of 600 N and the wind force is 50 N westwards. Calculate the resultant force on the parachutist. Example 2: Calculate the resultant force in the following situation: 40 N 12 N Now, solve the examples from your workbook in your classwork jotter showing full working for each one.

Success Criteria: The skills built up in a previous section will be used to solve vector problems involving forces. Tick off the box in your workbook when you have met the success criteria.

Now, use the space in your workbook to produce a summary of force vector diagrams. You may wish to produce concise bullet points, or draw a mind-map, or use any other useful revision technique. PUPIL CHECKPOINT : You should then swap your workbook with another pupil, and both of you should give feedback.