The perpendicular component of the force of gravity is directed opposite the normal force and as such balances the normal force. The parallel component of the force of gravity is not balanced by any other force. This object will subsequently accelerate down the inclined plane due to the presence of an unbalanced force.

Explanation: The normal force on an object at rest on a flat surface is equal to the gravitational force on that object. In equation form, that means . Use Newton’s second law ( ) to solve for the gravitational force, using acceleration due to gravity as your .

The force of gravity points straight down, but a ball rolling down a ramp doesn’t go straight down, it follows the ramp. This loss of gravitational potential energy shows up as an increase in kinetic energy. If the ball falls a farther distance vertically, it will have a greater kinetic energy and be going faster.

When an object is placed on an inclined plane, its weight vector can be resolved into the normal force, which is equal to the force of the object perpendicular to the plane, and a parallel force, which pushes the object down the inclined plane.

A ramp like the one in the Figure below is another example of an inclined plane. Inclined planes make it easier to move objects to a higher elevation. The sloping surface of the inclined plane supports part of the weight of the object as it moves up the slope. As a result, it takes less force to move the object uphill.

Because energy is conserved, it takes the same amount of energy to lift a box as it does to push it up a ramp to the same position (ignoring any friction). Pushing it up the ramp takes less force, but it must be applied through a greater distance.

Here are a few examples of inclined planes:

• Ramps.
• Stairs.
• Slides.
• Anthills.
• Slanted roofs.
• Escalators.

Now here we need to maintain the constant speed, the force must be equivalent in the direction of motion. Hence we need 98.10 N force to pull the box on given slope to move it with constant speed.

1. The normal force of an object placed on a sloping surface is always perpendicular to the surface.
2. mgsinθ
3. Take g = 9.8ms-2.
4. (a) Σ F = ma = mg sin θ where mg sin θ is the component of the force parallel to the slope.

Multiply mass times acceleration. The force (F) required to move an object of mass (m) with an acceleration (a) is given by the formula F = m x a. So, force = mass multiplied by acceleration.

g=9.8N/kg or 9.8m/s^2. Textbook says potential energy is mgh. why? According to textbook, PE=mgh because minimum force required to lift the object is mg and height is h.

Standard answer … based on Newton’s 2nd Law, F = ma, to move an object upwards at a steady speed (ie. a = 0) you only need to apply an upward force equal to the weight of the object. That is because F is the net or unbalanced force and F = F(up) – weight.

We cannot push or lift a book lying on a table without touching it due to no interaction of objects because in performing these tasks we use muscular force. Since muscular force can be applied only when it is in contact with an object, it is also called a contact force.

It contrasts with the drag force, which is the component of the force parallel to the flow direction. Lift conventionally acts in an upward direction in order to counter the force of gravity, but it can act in any direction at right angles to the flow.

Several factors help the pilot keep the wings level: the inclined mounting of the wings, the position of the wings above or below the fuselage, the swept-back shape of the wings, and the vertical stabilizer.

These same four forces help an airplane fly. The four forces are lift, thrust, drag, and weight.

This is especially of interest in the design and operation of high performance sailplanes, which can have glide ratios almost 60 to 1 (60 units of distance forward for each unit of descent) in the best cases, but with 30:1 being considered good performance for general recreational use.

Lift is directed perpendicular to the flight path and drag is directed along the flight path. Because lift and drag are both aerodynamic forces, the ratio of lift to drag is an indication of the aerodynamic efficiency of the airplane.

Drag acts in a direction that is opposite to the motion of the aircraft. Lift acts perpendicular to the motion.

the lift force must be greater than the the weight since the aircraft is flying. the forces are not related to each other. the thrust force is greater than the drag force.

Induced drag increases as the angle of attack of a wing increases. Induced drag therefore increases as airspeed decreases, as the angle of attack must increase to maintain the lift required for level flight. Parasite drag has little effect at low speeds, however it increases as airspeed increases.

Form Drag, also known as Pressure Drag or Profile Drag, is the drag caused by the separation of the boundary layer from a surface and the wake created by that separation. It is primarily dependent upon the shape of the object.

Four Forces Affect Things That Fly: It acts in a downward direction—toward the center of the Earth. Lift is the force that acts at a right angle to the direction of motion through the air. Lift is created by differences in air pressure. Thrust is the force that propels a flying machine in the direction of motion.