A ball is thrown vertically upwards. Which of the following plots represents the speed-time graph of the ball during its flight if the air resistance is not ignored?

Question

A ball is thrown vertically upwards. Which of the following plots represents the speed-time graph of the ball during its flight if the air resistance is not ignored? (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/ff7f45216357532a9eb1ea8b37ded4ad-.png" /> Speed of body at highest point is zero. From equation of motion, we have v2=u2-2 g h when u=0, v2=-2 g h As ball is thrown upwards velocity decreases as height decreases. At the highest point velocity is zero after that body starts downward motion, its speed increases.

Q. A ball is thrown vertically upwards. Which of the following plots represents the speed-time graph of the ball during its flight if the air resistance is not ignored?

Speed of body at highest point is zero.
From equation of motion, we have
$v^{2} = u^{2} - 2 g h$
when $u = 0, v^{2} = - 2 g h$
As ball is thrown upwards velocity decreases as height decreases.
At the highest point velocity is zero after that body starts downward motion, its speed increases.

Q. A ball is thrown vertically upwards. Which of the following plots represents the speed-time graph of the ball during its flight if the air resistance is not ignored?

Speed of body at highest point is zero. From equation of motion, we have v2=u2−2gh when u=0,v2=−2gh As ball is thrown upwards velocity decreases as height decreases. At the highest point velocity is zero after that body starts downward motion, its speed increases.

Speed of body at highest point is zero.
From equation of motion, we have
$v^{2} = u^{2} - 2 g h$
when $u = 0, v^{2} = - 2 g h$
As ball is thrown upwards velocity decreases as height decreases.
At the highest point velocity is zero after that body starts downward motion, its speed increases.