Robertoalva said:1. A skier of mass 51.4 kg comes down a slope of constant angle 26◦ with the horizontal. What force normal to the slope is exerted by the skis (neglect friction)? The acceleration of gravity is 9.8 m/s^2.
Homework Equations
F=ma
The Attempt at a Solution
my intuitions tell me to do this:
F=m*g*cos26
am i wrong?
The force that allows a skier to move down a slope is gravity. As the skier travels downhill, the force of gravity pulls them towards the Earth, causing them to accelerate and gain speed.
The weight of a skier plays a significant role in their movement down a slope. A heavier skier will have a greater force of gravity pulling them down the slope, causing them to travel faster. On the other hand, a lighter skier will have a weaker force of gravity and may move down the slope at a slower pace.
In addition to gravity, there are two other forces that act on a skier as they move down a slope: friction and air resistance. Friction is the force between the skier and the snow, which helps to slow down their movement. Air resistance, also known as drag, is the force of air pushing against the skier as they move downhill.
The angle of the slope has a significant impact on a skier's speed. A steeper slope will result in a greater force of gravity, causing the skier to accelerate and move faster. Conversely, a flatter slope will have a weaker force of gravity and will result in a slower speed for the skier.
A skier can use their body to control their movement down a slope in several ways. They can shift their weight to one side or the other to turn, use their poles to push off and gain speed, and adjust their body position to increase or decrease air resistance. Additionally, they can use their muscles to absorb shocks and maintain balance while navigating down the slope.