The force pulling a truck down hill is 2000 newtons what is the size of the static friction acting on the truck if the truck doesn't move?
Is alexandria really your school subject?
-2000 it would have to cancel out the normal 2000
To determine the size of the static friction acting on the truck, we need to understand the concept of static friction and how it relates to other forces acting on the truck.
1. The force pulling the truck downhill is 2000 newtons. Let's call this force F_pull.
2. When the truck is motionless, the static friction force (F_friction) between the tires and the road surface opposes the force pulling the truck downhill.
3. The maximum value of static friction (F_friction_max) is given by the equation: F_friction_max = µ_s * N, where µ_s is the coefficient of static friction and N is the normal force.
4. The normal force (N) is the force exerted by the road perpendicular to the truck's tires. In this case, it is equal to the weight of the truck, which is equivalent to the force of gravity acting on the truck. We can calculate the weight using the equation: N = m * g, where m is the mass of the truck and g is the acceleration due to gravity (approximately 9.8 m/s^2).
5. Once we have the normal force (N), we can substitute it back into the equation for the maximum static friction force: F_friction_max = µ_s * N.
6. Since the truck doesn't move, the static friction force (F_friction) must be equal to the force pulling the truck downhill (F_pull). Therefore, F_friction = F_pull.
Now that we have outlined the steps, we can calculate the size of the static friction acting on the truck.
Let's assume the coefficient of static friction (µ_s) between the tires and the road is 0.6.
Step 1: Calculate the normal force (N):
N = m * g
Step 2: Calculate the maximum static friction (F_friction_max):
F_friction_max = µ_s * N
Step 3: Since the truck doesn't move, F_friction = F_pull:
F_friction = F_pull
By following these steps and plugging in the appropriate numbers, we can find the size of the static friction acting on the truck.