Your average speed is 20 mph, but ONLY IF YOU'RE IN THE CAR during those 2 hours.
F=ma
Tension - weight = mass x acceleration
T - 5(9.81) = 5 x 1
T = 5 + 5(9.81)
T = 54.05 N
T ≈ 54 N
Answer:
Hold active layer of soil in place; act as producers in ecosystem
The car will speed up because if the air resistance and friction forces are reacting in the direction opposite to the Applied force, The Net force will still be in the direction of the car's motion and since F=ma a will cause your velocity to increase