An airplane (M = 5000 kg) is pulling a glider (m = 200 kg) along a runway. If they are accelerating at 7 m/s^2, what is the strength of the airplane's thrust?

A2000 kg car is rounding a curve of radius 200 m on a level road. the maximum frictional force the road can exert on the tires of the car is 4000 n. what is the highest speed at which the car can round the curve?

In an experiment, how can i change human errors? be specific.

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight