Table of Contents

- 1 How do you calculate the pulling force of an object?
- 2 How do you find the force down a ramp?
- 3 What is the formula to calculate acceleration?
- 4 What are the 3 examples of non-contact forces?
- 5 Why is it easier to push something up a ramp?
- 6 What is the weakest fundamental force?
- 7 How much force did a tractor use to pull a wagon?
- 8 What is the mechanical advantage of a ramp?

## How do you calculate the pulling force of an object?

Learning the Formula. 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.

**Is pulling a wagon a contact force?**

Contact forces are forces between objects which are touching each other. Most of the forces that we looked at in the previous section were contact forces, for example, when you push a desk, or pull a go-cart. You are touching the object.

### How do you find the force down a ramp?

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

**How do you calculate force normal?**

Normal Force Formula

- The normal force will be equivalent to the weight of the object only if the object is not accelerating i.e. decelerating.
- F_N = mg.
- F_N = mg + F sin\;\theta.
- F_N = mg – F sin\;\theta.
- F_N = mg cos\;\theta.
- Angle \theta = 30°
- Sin 30° = \frac{1}{2}
- F_N = mg + F sin\;\theta.

#### What is the formula to calculate acceleration?

Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared (m/s^2).

**What is formula for mass?**

One way to calculate mass: Mass = volume × density. Weight is the measure of the gravitational force acting on a mass. The SI unit of mass is “kilogram”.

## What are the 3 examples of non-contact forces?

The three types of non-contact forces are gravitational force, magnetic force, electrostatic and nuclear force.

**Is lightning a contact or noncontact force?**

Contact force. the force of attraction or repulsion between charged particles. eg: lightning.

### Why is it easier to push something up a ramp?

A ramp is an example of an inclined plane. Using an inclined plane makes it easier to move an object. It takes less force to move an object in an upward direction on an inclined plane than it does to lift the object straight up. It would take more force to move a load up this steep incline.

**What is the normal force equal to?**

Explanation: The normal force on an object at rest on a flat surface is equal to the gravitational force on that object.

#### What is the weakest fundamental force?

Though gravity holds planets, stars, solar systems and even galaxies together, it turns out to be the weakest of the fundamental forces, especially at the molecular and atomic scales.

**Why is it easier to pull a wagon up a ramp than to lift it?**

The answer to that question is that the ramp allows you to lift the wagon using a. smaller force exerted over a longer distance. Regardless of how you lift the wagon you have to do work on it, to raise its. altitude from this to this.

## How much force did a tractor use to pull a wagon?

A tractor pulled a wagon full of hay for a distance of 500 m. The force exerted on the wagon to move 500m distance was 15,000 N. Find how much work was done by the tractor to pull the wagon?

**How to calculate the force needed to push an object up a ramp?**

The minimum force needed to push that refrigerator up the ramp has a magnitude Fpush, and it has to counter the component of the weight of the refrigerator acting along the ramp and the force due to friction. The first step in this problem is to resolve the weight of the refrigerator into components parallel and perpendicular to the ramp.

### What is the mechanical advantage of a ramp?

The mechanical advantage of a simple machine known as a ramp, or inclined plane. What that, what that ramp is doing for me is allowing me to do something. With, to, to rearrange the force, and, and direction of force. The amount of force and the direction of force that I need to use to do some particular activity.