I got 8.6. We can't tell where your mistake is until you post your working.Said90 said:A car travels 10 km due EAST then 12. Km NW what is Magnitude of the car's displacement.
The answer that I got in my book is 8.8
Could anyone-please-explain ?The Attempt at a Solution
6.6 km[/B]
haruspex said:I got 8.6. We can't tell where your mistake is until you post your working.
It is not a right-angled triangle. Do you know a rule for finding the third side of a triangle given two sides and the angle between them?Said90 said:***I made a mistake .. The answer in the book is 8.6***I've just applied Pythagorean theorem to get the answer !
144 = 100+X^2
Could please explain your answer?
haruspex said:It is not a right-angled triangle. Do you know a rule for finding the third side of a triangle given two sides and the angle between them?
Draw yourself a diagram.Said90 said:Yea..I got the idea
C^2=a^2+b^2- 2bc COSa
But still don't know how to get the angle's value
Displacement is the distance and direction of an object's change in position from its starting point to its ending point. It is a vector quantity that takes into account both magnitude (distance) and direction.
To calculate displacement, you need to know the initial position (x1) and final position (x2) of the object. The formula for displacement is:
Δx = x2 - x1
Yes, displacement can be negative. The negative sign indicates that the object has moved in the opposite direction of the chosen positive direction. For example, if the chosen positive direction is to the right, then a displacement of -5 meters means that the object has moved 5 meters to the left.
Distance is a scalar quantity that only takes into account the total length traveled, while displacement is a vector quantity that includes both distance and direction. Distance is always positive, while displacement can be positive, negative, or zero.
Displacement is the change in position of an object, while velocity is the rate of change of displacement over time. Velocity is a vector quantity that takes into account both the speed and direction of an object's motion.