Can someone help me on a Relative Motion physics Question?

In summary, relative motion in physics is the movement of an object in relation to another object, taking into account their position, velocity, and acceleration. To calculate relative motion, one must determine the reference frame and relative velocity between the two objects. The main difference between relative motion and absolute motion is the reference point, with relative motion considering movement in relation to another object and absolute motion measured with respect to a fixed reference point. Relative motion can be applied to objects in different dimensions, and some real-world examples include a car moving on a road, an airplane flying in the sky, or a person walking on a moving train.
  • #1
azngirl92
1
0
A river flows east to west at 3.0 m/s and is 80 m wide. A boat, capable of moving at 4.0 m/s, crosses in two different ways.
(a) Find the time to cross if the boat is pointed directly north and moves at an angle downstream.
(b) Find the time to cross if the boat is pointed at an angle upstream
 
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  • #2
What is the vector equation you have been learning about for use in all of these relative motion exercises? It involves terms such as Va and Va rel b, etc.
 

FAQ: Can someone help me on a Relative Motion physics Question?

What is relative motion in physics?

Relative motion in physics refers to the movement of an object in relation to another object. It takes into account the position, velocity, and acceleration of each object and how they change over time.

How do you calculate relative motion?

To calculate relative motion, you need to first determine the reference frame (the starting point) and the relative velocity between the two objects. Then, you can use vector addition or subtraction to find the relative position, velocity, or acceleration of one object with respect to the other.

What is the difference between relative motion and absolute motion?

The main difference between relative motion and absolute motion is the reference point. Relative motion takes into account the movement of an object in relation to another object, while absolute motion is measured with respect to a fixed reference point, such as the Earth's surface.

Can relative motion be applied to objects in different dimensions?

Yes, relative motion can be applied to objects in different dimensions, such as 1D (one-dimensional) or 2D (two-dimensional). In these cases, the position, velocity, and acceleration of the objects would be represented by vectors in the respective dimensions.

What are some real-world examples of relative motion?

Some examples of relative motion in everyday life include a car moving on a road, an airplane flying in the sky, or a person walking on a moving train. In all of these scenarios, the movement of one object is described in relation to another object.

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