Question

A ball is thrown vertically upwards. Which of the following quantities remains constant?

• A. Acceleration
• B. Velocity
• C. Speed
• D. Kinetic energy

Answer 1

The correct option is A Acceleration

$\text{Ans.: (a) acceleration}$

$\text{When the body is thrown vertically upwards,}$ $\text{its acceleration will remain constant.}$

$\text{While its speed will become zero at the peak of its}$ $\text{projection and thus kinetic energy changes}.$