Question

HW Due today would appreciate if you could answer as soon as possible.

1. A man jumps out of an airplane and is accelerating towards the ground. Consider air resistance. Draw the forces acting on the falling man. Write a paragraph explaining your diagram and what is happening to the man.

2. 2. If a cyclist is travelling with a speed of 15 miles per hour. Draw a diagram for the action of the cyclist. Determine the number of meters the cyclist will have travelled in 25 minutes keep track of the units in the solution calculations.

Answer 1

Monkey Luffy

HW Due

A man jumping out of an airplane experiences two main forces acting on him: gravity and air resistance. Gravity acts vertically downward, pulling the man towards the ground. Air resistance acts horizontally, in the opposite direction of the man's motion, and its magnitude depends on the man's velocity.

As the man falls, his velocity increases, causing the magnitude of air resistance to increase. At some point, air resistance will equal the force of gravity, and the man will reach terminal velocity, the maximum velocity he can reach while falling. At terminal velocity, the net force on the man is zero, so his acceleration is zero and his velocity remains constant.

The diagram for a cyclist travelling at 15 miles per hour would show the force of propulsion acting forward on the cyclist and the force of friction acting in the opposite direction. Propulsion is the force that drives the cyclist forward, and friction is the force that resists the motion of the wheels on the road.

In 25 minutes, the cyclist would have travelled 15 miles per hour * (25 minutes/60 minutes/hour) = 6.25 miles. To convert this to meters, we can use the conversion factor 1 mile = 1609.34 meters, so 6.25 miles * 1609.34 meters/mile = 10,116.75 meters. The number of meters the cyclist would have travelled in 25 minutes is 10,116.75 meters.