A particle starts from centre O toward A then moves along AB and stop at B. If R=100m ,then displacement of the particle is:
Correct answer: A. 100m
- A. 100m
- B. 100√2 m
- C. 100/√2 m
- D. None
Explanation
Assuming O is the center of a circle and AB is along the circumference of a circle of radius R (R = 100 meters), any point on that circumference. such as B, is 100 meters from the origin, (O).All that matters for displacement is how far the final point is on a direct line from the origin.Any point on the circumference of a circle is the "radius" distance from the origin.The displacement is 100 meters.Displacement is a vector quantity, so there should be a direction to that 100 meters..
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Force and Motion
Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
Practise Force and Motion
1,416 free Force and Motion MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Force and Motion questions
A ball is dropped from a height 10m. The ball is embeded in sand through 1m and stop,then
Consider the following graphs (note the axes carefully). Which of these represent motion at constant speed?
If two equal forces act perpendicularly upon each other, then the angle between the resultant force and a horizontal surface will be
Displacement- time graph of a ball thrown vertically upward is shown in figure:
In which of the following cases forces may not be required? To keep the:
A cylist ridding at a speed of 5m/sec braked with uniform decceleration and stopped in 3m. The acceleration is: