9 Motion under gravity

Author:
utkarsh.kumar, Tom Owsiak, Roland Moutal
Tinker twith the simulation below and Observe the Green triangle. It changes its shape > The vertical arrow represents the vertical Component and the horizontal arrow represents horizontal component
Observe simulation at least 3 times. Step One : At what time of motion the vertical arrow (green one) is zero. Step two: Notice the direction of the bigger arrow( forming hypotenuse of green triangle) and its value. At this point you can use the toggle switches and time slider to explore more.

What is the time of simulation

Hint: There is total time mentioned in there

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What time is the particle at maximum height

Hint: Use the time slider

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Can you think of an equation relating total time(Tt) and time it takes to attain maximum height(Th) .

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Q1

Q1

Which option is correct

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Q2

Q2

Which option is correct

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Q3

Q3

Which option is correct

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Q4

Q4

Which option is correct

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Q5

Q5

Which option is correct

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SIM 2: TINKER AROUND WITH SETTINGS , SLIDERS

Use simulation as a means to find answers of following questions

Try finding for a fixed velocity, (Say 10 , then 20 , then 30) the angle that makes the range maximum. You can use the sliders of velocity to keep the desired initial velocity . Change the angle by using slider to see what angle makes the maximum Range for each case of velocity.

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The time when the vertical component of velocity (blue vertical arrow) is zero ( vertical blue arrow does not exist)

the initial conditions are v= 10 angle = 45

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Q6

Q6

Which option is correct

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Q7 With respect to the motion of projectile in simulation above answer the following

Which part of motion has positive acceleration and which part has negative acceleration. Do you think the direction of acceleration changes.

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