The displacement-time graph for two bodies A and B are straight lines inclined at 60° and 30° to the time axis. Find the ratio of their speed is
Correct answer: A. 3:1
- A. 3:1
- B. √3:1
- C. 1:3
- D. 1:3^1/2
Explanation
The slope of the displacement-time graph represents velocity. The tangent of the angle of inclination of the line gives the ratio of the velocities. So, if the angles are 60° and 30°, the ratio of speeds would be tan(60°):tan(30°) = 3:1Incorrect Options Explanation:(b) √3:1: This ratio doesn't correspond to the given angles.(c) 1:3: This ratio is the inverse of the correct ratio.(d) 1:3^1/2: This ratio is the reciprocal of the correct ratio.
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
Which of the following changes when a particle is moving with uniform velocity?
The ratio of distance to displacement along a semicircle of radius r is
The displacement-time graph of a particle moving with uniform velocity is
A ball is projected at 45°; its horizontal range is 10m. The velocity of projection is
The numerical value of the ratio of average velocity to average speed is
Rocket works on the principle of conservation of