A650 kg airplane must reach its takeoff speed while traveling down a 61.0 m long runway. the pilot starts the plane from rest, and by the end of the runway he has reached the takeoff speed of 29.0 m/s. to the nearest newton, what net force must act on the plane? hint: there are multiple ways you could go about solving this problem.

Force in the plane will be 4488.09 N

Explanation:

We have given mass of the airplane m = 650 kg

Length of the runway S = 61 m

As the plane starts from rest so initial; velocity u = 0 m/sec

Final velocity of airplane v = 29 m/sec

From first equation of motion v = u+at

29 = 0+at

at = 29

From second equation of motion

Now using at =29

t = 4.20 sec

So

According to second law of motion F= ma

So force F = 650×6.9 = 4488.09 N

since there isn't any suggested answers i will give you the reason and hopefully you can figure it

south africa, or rather all of africa, has not been in the location in which it is nowadays throughout the geological past. after the super-continent pangaea started to break apart, gondwanaland, in which was africa, moved further south, and parts of it came to be very close to the south pole. because the climate in this part of the world is very cold due to the very dispersed sun rays in there, what is now south africa, started to freeze, and the conditions were right for the formation of glaciers. the glaciers existed up until the period when gondwanaland started to break apart and what is now africa started to move towards north, sp it warmed up and the glaciers melted.