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1. A gymnast holding on two ropes. A gymnast is holding onto two ropes tht attach to the ceiling.Draw the free-body digrams of the forces acting on.Identify the forces acting on the.Identify whether the net force is balanced or not balanced.
2.An egg is free-falling from a nest in a tree. Neglect air resistance.Draw the free-body digrams of the forces acting on.Identify the forces acting on the object.Identify whether the net force is balanced or not balanced.
3. A backpack suspenden motionless. A grade 12 student rests a backpack upon his shoulder. The pack is suspended motionless by two straps from his shoulder.Draw the free-body digrams of the forces acting on each.Identify the forces acting on the object.Identify whether the net force is balanced or not balanced.
4. A car slowing down. A car is coasting to the left and slowing down.Draw the free-body digrams of the forces acting on.Identify the forces on the object. Identify whether the net force is balance or not balance.
A book on top of a table. A rightward force is applied to a book to move it across a desk at a constant velocity. Consider frictional forces. Neglect air resistance.
1. Draw the free body diagrams of the forces acting on each item above.
2. Identify the forces acting on the object in each item.
3. Identify whether the net force is a balance or not balance.
In this evaluated learning task, you will choose a specific prosthetic device and analyze and report on its effectiveness in a sport or physical activity and how it has impacted society.
You should:
Choose a prosthetic device and a sport or physical activity.
Conduct research into the prosthetic.
Describe, with the aid of diagrams, the physics involved in their design (i.e. effort force, effort arm, torque, mechanical advantage) and use in the sport or physical activity.
Describe what improves the mechanical advantage and efficiency of the prosthetic.
Describe the source of energy and energy transformations used by the prosthetic.
Describe at least one impact the prosthetic has had on society.
Provide details about its manufacturing cost and availability to the public.
Propose a change that could be made to the prosthetic to make it more efficient and user friendly in the sport or physical activity.
A crane lifts 1, 800 kg load os scrap metal to a distance of 12 m in 20 s. How much power is delivered to the road?
A crane lifts 1, 800 kg load os scrap metal to a distance of 12 m in 20 s. How much power is delivered to the road?
Identify whether the statement is true or false. Write TRUE if you think it is, otherwise, explain
why it is false.
7. Parallel vectors are equal vectors.
8. Equal vectors are parallel vectors.
9. Parallel vectors are equal to their anti-parallel vectors.
10. Anti-parallel vectors are equal vectors
a dog is 21ft from the door. it runs toward the door at a constant velocity. after 5s, it is 1 from the door. what was the dogs velocity?
How many newtons of force are needed to accelerate an object with mass of m = 13.21 kg at a rate of a = 19.1 m/s2?
We’ll start with the same time data as above, but this time, you will create the position data. In the original set of data, the object increased its distance by 20 metres every 10 seconds. In this case, the object will need to cover greater and greater amounts of distance in each 10-second interval.
Time (t) in s Position (\vec{d}) in m [S]
0 0
10
20
30
40
50
60
70
Now, graph your data. Compare what you see in your graph with the graph of uniform motion earlier in this activity.
Create a reflection, and record your answers to the following questions:
How does the shape of your non-uniform motion graph differ from the uniform motion graph?
What do you think the position-time graph of an object that was slowing down might look like?
