Well to find instantaneous speed, you basically make the time frame really short, so basically measure the distance the object moves within a small amount of time(0.1 seconds or something). The smaller the time, the more accurate the instantaneous speed is.
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Answer:
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Explanation:
When something that needs power that you are turning off you will not need power when its off.
Answer:I think It looks good, maybe add A little more info to pad your chart from getting a bad grade. cant go wrong there!
Explanation:
good luck!
If force is applied at 30 degree with the horizontal
then first we will find the components of force in two directions
now we can find normal force by balancing the forces in Y direction
now since block is moving with constant speed
so here forces along horizontal plane will be balanced also
Now the weight of the box is defined as
now plug in all values