Two balls are released simultaneously from a point 'A' with zero vertical velocity as shown in the given diagram.These balls followed different paths but reached the ground at the same time due to the
Correct answer: B. Horizontal velocity.
- A. Same size of balls
- B. Horizontal velocity.
- C. Same vertical height
- D. Horizontal acceleration
Explanation
The time it takes for an object to reach the ground is determined by its initial vertical velocity and the height from which it is released, not by its horizontal velocity. Since both balls are released simultaneously with zero vertical velocity, they are only affected by gravity, which acts vertically. Thus, they reach the ground at the same time. The horizontal velocity does not influence the time it takes for the balls to fall. Option A is incorrect because the size of the balls does not affect their fall time in the absence of air resistance. Option C is incorrect because while the same vertical height ensures the same fall time, the question focuses on the effect of horizontal velocity. Option D is incorrect because horizontal acceleration does not affect vertical fall time.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Projectile Motion
Projectile motion combines uniform horizontal motion with vertically accelerated motion under gravity, assuming air resistance is neglected. Questions use the components of initial velocity to find time of flight, maximum height, horizontal range and position, while distinguishing projectile motion from general circular or one dimensional motion.
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 Projectile Motion questions
When a projectile reaches the highest point of the trajectory, the vertical component of itsvelocity becomes
A football kicked by a football player in the air is an example of
The given diagram shows the projectile motion of a ball. The magnitude of the verticalcomponent of velocity (v) will be maximum at point
Missiles I, II, III, and IV are launched at 35o, 45o, 55o and 65o, respectively from the origin. The shortest distance will be covered by
A two dimensional motion under the acceleration due to gravity is known as
The given figure shows the first attempt of a long jump of an athlete in Olympics.Which of the following factors will MAINLY help him to break his own record in the next attempt?