Question

Statement 1:Two balls of different masses are thrown vertically upward with same speed.They will pass through their point of projection in downward direction with the same speed.
Statement 2:The maximum height and downward velocity attained at the point of projection are independent of the mass of the ball

• A. Statement -1 is false , Statement- 2 is true.
• B. Statement-1 is true, Statement-2 is true , Statement-2 is a correct explanation for statement-1
• C. Statement-1 is true , Statement-2 is true; Statement-2 is not a correct explanation for statement-1
• D. Statement -1 is true, Statement-2 is false.

Answer 1

The correct option is B Statement-1 is true, Statement-2 is true , Statement-2 is a correct explanation for statement-1

Take upward direction as positive

Height is given by

$h=ut-\frac{1}{2}g{t}^2$

Velocity is given by

$v^2=u^2-2gh$
These equation are independent of mass.